Home / 145,349.76-200,500.60-91,542.32

Finding the Fourth Proportional to 145,349.76, 200,500.60 and 91,542.32

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Solution

The fourth proportional to 145,349.76, 200,500.60 and 91,542.32 is: 126,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,349.76 : 200,500.60 = 91,542.32 : x
  2. Step 2: Convert to fraction form
    145,349.76/200,500.60 = 91,542.32/x
  3. Step 3: Cross multiply
    145,349.76x = 200,500.60 × 91,542.32
  4. Step 4: Simplify right side
    145,349.76x = 18,354,290,085.39
  5. Step 5: Solve for x
    x = 18,354,290,085.39/145,349.76
  6. Step 6: Final answer
    x = 126,276.71

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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.