Home / 130,589.82-180,254.97-74,038.86

Finding the Fourth Proportional to 130,589.82, 180,254.97 and 74,038.86

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Solution

The fourth proportional to 130,589.82, 180,254.97 and 74,038.86 is: 102,196.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,589.82 : 180,254.97 = 74,038.86 : x
  2. Step 2: Convert to fraction form
    130,589.82/180,254.97 = 74,038.86/x
  3. Step 3: Cross multiply
    130,589.82x = 180,254.97 × 74,038.86
  4. Step 4: Simplify right side
    130,589.82x = 13,345,872,488.13
  5. Step 5: Solve for x
    x = 13,345,872,488.13/130,589.82
  6. Step 6: Final answer
    x = 102,196.88

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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.