Home / 131,429.59-181,372.69-71,000.23

Finding the Fourth Proportional to 131,429.59, 181,372.69 and 71,000.23

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Solution

The fourth proportional to 131,429.59, 181,372.69 and 71,000.23 is: 97,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.59 : 181,372.69 = 71,000.23 : x
  2. Step 2: Convert to fraction form
    131,429.59/181,372.69 = 71,000.23/x
  3. Step 3: Cross multiply
    131,429.59x = 181,372.69 × 71,000.23
  4. Step 4: Simplify right side
    131,429.59x = 12,877,503,645.97
  5. Step 5: Solve for x
    x = 12,877,503,645.97/131,429.59
  6. Step 6: Final answer
    x = 97,980.25

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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.