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Finding the Fourth Proportional to 129,952.56, 179,343 and 73,365.36

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Solution

The fourth proportional to 129,952.56, 179,343 and 73,365.36 is: 101,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952.56 : 179,343 = 73,365.36 : x
  2. Step 2: Convert to fraction form
    129,952.56/179,343 = 73,365.36/x
  3. Step 3: Cross multiply
    129,952.56x = 179,343 × 73,365.36
  4. Step 4: Simplify right side
    129,952.56x = 13,157,563,758.48
  5. Step 5: Solve for x
    x = 13,157,563,758.48/129,952.56
  6. Step 6: Final answer
    x = 101,248.98

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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.