Home / 131,779.04-181,868.10-75,198.92

Finding the Fourth Proportional to 131,779.04, 181,868.10 and 75,198.92

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Solution

The fourth proportional to 131,779.04, 181,868.10 and 75,198.92 is: 103,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779.04 : 181,868.10 = 75,198.92 : x
  2. Step 2: Convert to fraction form
    131,779.04/181,868.10 = 75,198.92/x
  3. Step 3: Cross multiply
    131,779.04x = 181,868.10 × 75,198.92
  4. Step 4: Simplify right side
    131,779.04x = 13,676,284,702.45
  5. Step 5: Solve for x
    x = 13,676,284,702.45/131,779.04
  6. Step 6: Final answer
    x = 103,781.94

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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.