Home / 136,071.43-187,779.60-74,818.69

Finding the Fourth Proportional to 136,071.43, 187,779.60 and 74,818.69

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Solution

The fourth proportional to 136,071.43, 187,779.60 and 74,818.69 is: 103,250.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,071.43 : 187,779.60 = 74,818.69 : x
  2. Step 2: Convert to fraction form
    136,071.43/187,779.60 = 74,818.69/x
  3. Step 3: Cross multiply
    136,071.43x = 187,779.60 × 74,818.69
  4. Step 4: Simplify right side
    136,071.43x = 14,049,423,211.28
  5. Step 5: Solve for x
    x = 14,049,423,211.28/136,071.43
  6. Step 6: Final answer
    x = 103,250.36

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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.