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Finding the Fourth Proportional to 127,162.56, 175,487.04 and 70,572

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Solution

The fourth proportional to 127,162.56, 175,487.04 and 70,572 is: 97,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,162.56 : 175,487.04 = 70,572 : x
  2. Step 2: Convert to fraction form
    127,162.56/175,487.04 = 70,572/x
  3. Step 3: Cross multiply
    127,162.56x = 175,487.04 × 70,572
  4. Step 4: Simplify right side
    127,162.56x = 12,384,471,386.88
  5. Step 5: Solve for x
    x = 12,384,471,386.88/127,162.56
  6. Step 6: Final answer
    x = 97,390.86

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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.