Home / 93,387.20-139,175.01-90,398.48

Finding the Fourth Proportional to 93,387.20, 139,175.01 and 90,398.48

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Solution

The fourth proportional to 93,387.20, 139,175.01 and 90,398.48 is: 134,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.20 : 139,175.01 = 90,398.48 : x
  2. Step 2: Convert to fraction form
    93,387.20/139,175.01 = 90,398.48/x
  3. Step 3: Cross multiply
    93,387.20x = 139,175.01 × 90,398.48
  4. Step 4: Simplify right side
    93,387.20x = 12,581,209,357.98
  5. Step 5: Solve for x
    x = 12,581,209,357.98/93,387.20
  6. Step 6: Final answer
    x = 134,720.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.