Home / 145,853.10-218,779.65-124,857.90

Finding the Fourth Proportional to 145,853.10, 218,779.65 and 124,857.90

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Solution

The fourth proportional to 145,853.10, 218,779.65 and 124,857.90 is: 187,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.10 : 218,779.65 = 124,857.90 : x
  2. Step 2: Convert to fraction form
    145,853.10/218,779.65 = 124,857.90/x
  3. Step 3: Cross multiply
    145,853.10x = 218,779.65 × 124,857.90
  4. Step 4: Simplify right side
    145,853.10x = 27,316,367,661.74
  5. Step 5: Solve for x
    x = 27,316,367,661.74/145,853.10
  6. Step 6: Final answer
    x = 187,286.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.