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Finding the Fourth Proportional to 115,127.87, 158,834.32 and 69,773.13

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Solution

The fourth proportional to 115,127.87, 158,834.32 and 69,773.13 is: 96,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,127.87 : 158,834.32 = 69,773.13 : x
  2. Step 2: Convert to fraction form
    115,127.87/158,834.32 = 69,773.13/x
  3. Step 3: Cross multiply
    115,127.87x = 158,834.32 × 69,773.13
  4. Step 4: Simplify right side
    115,127.87x = 11,082,367,483.39
  5. Step 5: Solve for x
    x = 11,082,367,483.39/115,127.87
  6. Step 6: Final answer
    x = 96,261.38

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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.