Home / 105,154,082.74-157,590,130.40-81,838,977.23

Finding the Fourth Proportional to 105,154,082.74, 157,590,130.40 and 81,838,977.23

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Solution

The fourth proportional to 105,154,082.74, 157,590,130.40 and 81,838,977.23 is: 122,648,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,154,082.74 : 157,590,130.40 = 81,838,977.23 : x
  2. Step 2: Convert to fraction form
    105,154,082.74/157,590,130.40 = 81,838,977.23/x
  3. Step 3: Cross multiply
    105,154,082.74x = 157,590,130.40 × 81,838,977.23
  4. Step 4: Simplify right side
    105,154,082.74x = 12,897,015,093,478,332
  5. Step 5: Solve for x
    x = 12,897,015,093,478,332/105,154,082.74
  6. Step 6: Final answer
    x = 122,648,733.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.