Home / 152,040.53-209,781.13-90,774.81

Finding the Fourth Proportional to 152,040.53, 209,781.13 and 90,774.81

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Solution

The fourth proportional to 152,040.53, 209,781.13 and 90,774.81 is: 125,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.53 : 209,781.13 = 90,774.81 : x
  2. Step 2: Convert to fraction form
    152,040.53/209,781.13 = 90,774.81/x
  3. Step 3: Cross multiply
    152,040.53x = 209,781.13 × 90,774.81
  4. Step 4: Simplify right side
    152,040.53x = 19,042,842,777.08
  5. Step 5: Solve for x
    x = 19,042,842,777.08/152,040.53
  6. Step 6: Final answer
    x = 125,248.47

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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.