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Finding the Fourth Proportional to 150,499, 207,721.02 and 90,083.13

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Solution

The fourth proportional to 150,499, 207,721.02 and 90,083.13 is: 124,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,499 : 207,721.02 = 90,083.13 : x
  2. Step 2: Convert to fraction form
    150,499/207,721.02 = 90,083.13/x
  3. Step 3: Cross multiply
    150,499x = 207,721.02 × 90,083.13
  4. Step 4: Simplify right side
    150,499x = 18,712,159,648.39
  5. Step 5: Solve for x
    x = 18,712,159,648.39/150,499
  6. Step 6: Final answer
    x = 124,334.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.