Home / 113,901.50-157,185.74-66,154.86

Finding the Fourth Proportional to 113,901.50, 157,185.74 and 66,154.86

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Solution

The fourth proportional to 113,901.50, 157,185.74 and 66,154.86 is: 91,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,901.50 : 157,185.74 = 66,154.86 : x
  2. Step 2: Convert to fraction form
    113,901.50/157,185.74 = 66,154.86/x
  3. Step 3: Cross multiply
    113,901.50x = 157,185.74 × 66,154.86
  4. Step 4: Simplify right side
    113,901.50x = 10,398,600,789.08
  5. Step 5: Solve for x
    x = 10,398,600,789.08/113,901.50
  6. Step 6: Final answer
    x = 91,294.68

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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.