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Finding the Fourth Proportional to 127,127.50, 175,435.98 and 70,539.28

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Solution

The fourth proportional to 127,127.50, 175,435.98 and 70,539.28 is: 97,344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.50 : 175,435.98 = 70,539.28 : x
  2. Step 2: Convert to fraction form
    127,127.50/175,435.98 = 70,539.28/x
  3. Step 3: Cross multiply
    127,127.50x = 175,435.98 × 70,539.28
  4. Step 4: Simplify right side
    127,127.50x = 12,375,127,715.29
  5. Step 5: Solve for x
    x = 12,375,127,715.29/127,127.50
  6. Step 6: Final answer
    x = 97,344.22

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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.