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Finding the Fourth Proportional to 127,113.71, 175,422.42 and 76,134.74

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Solution

The fourth proportional to 127,113.71, 175,422.42 and 76,134.74 is: 105,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,113.71 : 175,422.42 = 76,134.74 : x
  2. Step 2: Convert to fraction form
    127,113.71/175,422.42 = 76,134.74/x
  3. Step 3: Cross multiply
    127,113.71x = 175,422.42 × 76,134.74
  4. Step 4: Simplify right side
    127,113.71x = 13,355,739,459.76
  5. Step 5: Solve for x
    x = 13,355,739,459.76/127,113.71
  6. Step 6: Final answer
    x = 105,069.23

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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.