Home / 91,480.14-137,220.21-60,308.10

Finding the Fourth Proportional to 91,480.14, 137,220.21 and 60,308.10

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Solution

The fourth proportional to 91,480.14, 137,220.21 and 60,308.10 is: 90,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,480.14 : 137,220.21 = 60,308.10 : x
  2. Step 2: Convert to fraction form
    91,480.14/137,220.21 = 60,308.10/x
  3. Step 3: Cross multiply
    91,480.14x = 137,220.21 × 60,308.10
  4. Step 4: Simplify right side
    91,480.14x = 8,275,490,146.70
  5. Step 5: Solve for x
    x = 8,275,490,146.70/91,480.14
  6. Step 6: Final answer
    x = 90,462.15

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1.5x scale

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.