Home / 130,488.27-180,062.82-72,346.56

Finding the Fourth Proportional to 130,488.27, 180,062.82 and 72,346.56

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Solution

The fourth proportional to 130,488.27, 180,062.82 and 72,346.56 is: 99,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,488.27 : 180,062.82 = 72,346.56 : x
  2. Step 2: Convert to fraction form
    130,488.27/180,062.82 = 72,346.56/x
  3. Step 3: Cross multiply
    130,488.27x = 180,062.82 × 72,346.56
  4. Step 4: Simplify right side
    130,488.27x = 13,026,925,610.90
  5. Step 5: Solve for x
    x = 13,026,925,610.90/130,488.27
  6. Step 6: Final answer
    x = 99,832.16

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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.