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Finding the Fourth Proportional to 130,038.16, 179,456.16 and 73,449.76

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Solution

The fourth proportional to 130,038.16, 179,456.16 and 73,449.76 is: 101,362.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,038.16 : 179,456.16 = 73,449.76 : x
  2. Step 2: Convert to fraction form
    130,038.16/179,456.16 = 73,449.76/x
  3. Step 3: Cross multiply
    130,038.16x = 179,456.16 × 73,449.76
  4. Step 4: Simplify right side
    130,038.16x = 13,181,011,882.52
  5. Step 5: Solve for x
    x = 13,181,011,882.52/130,038.16
  6. Step 6: Final answer
    x = 101,362.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.