Home / 105,154,079.51-157,590,125.50-81,838,974.03

Finding the Fourth Proportional to 105,154,079.51, 157,590,125.50 and 81,838,974.03

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Solution

The fourth proportional to 105,154,079.51, 157,590,125.50 and 81,838,974.03 is: 122,648,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,154,079.51 : 157,590,125.50 = 81,838,974.03 : x
  2. Step 2: Convert to fraction form
    105,154,079.51/157,590,125.50 = 81,838,974.03/x
  3. Step 3: Cross multiply
    105,154,079.51x = 157,590,125.50 × 81,838,974.03
  4. Step 4: Simplify right side
    105,154,079.51x = 12,897,014,188,178,940
  5. Step 5: Solve for x
    x = 12,897,014,188,178,940/105,154,079.51
  6. Step 6: Final answer
    x = 122,648,728.88

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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.