Home / 131,446.26-181,395.72-71,830.26

Finding the Fourth Proportional to 131,446.26, 181,395.72 and 71,830.26

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Solution

The fourth proportional to 131,446.26, 181,395.72 and 71,830.26 is: 99,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,446.26 : 181,395.72 = 71,830.26 : x
  2. Step 2: Convert to fraction form
    131,446.26/181,395.72 = 71,830.26/x
  3. Step 3: Cross multiply
    131,446.26x = 181,395.72 × 71,830.26
  4. Step 4: Simplify right side
    131,446.26x = 13,029,701,730.49
  5. Step 5: Solve for x
    x = 13,029,701,730.49/131,446.26
  6. Step 6: Final answer
    x = 99,125.69

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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.