Home / 148,047.41-221,972.47-81,518.87

Finding the Fourth Proportional to 148,047.41, 221,972.47 and 81,518.87

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Solution

The fourth proportional to 148,047.41, 221,972.47 and 81,518.87 is: 122,223.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,047.41 : 221,972.47 = 81,518.87 : x
  2. Step 2: Convert to fraction form
    148,047.41/221,972.47 = 81,518.87/x
  3. Step 3: Cross multiply
    148,047.41x = 221,972.47 × 81,518.87
  4. Step 4: Simplify right side
    148,047.41x = 18,094,944,925.51
  5. Step 5: Solve for x
    x = 18,094,944,925.51/148,047.41
  6. Step 6: Final answer
    x = 122,223.99

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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.