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Finding the Fourth Proportional to 127,955, 176,577.90 and 71,366.42

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Solution

The fourth proportional to 127,955, 176,577.90 and 71,366.42 is: 98,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,955 : 176,577.90 = 71,366.42 : x
  2. Step 2: Convert to fraction form
    127,955/176,577.90 = 71,366.42/x
  3. Step 3: Cross multiply
    127,955x = 176,577.90 × 71,366.42
  4. Step 4: Simplify right side
    127,955x = 12,601,732,574.12
  5. Step 5: Solve for x
    x = 12,601,732,574.12/127,955
  6. Step 6: Final answer
    x = 98,485.66

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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.