Home / 136,009.68-187,701.96-76,397.52

Finding the Fourth Proportional to 136,009.68, 187,701.96 and 76,397.52

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Solution

The fourth proportional to 136,009.68, 187,701.96 and 76,397.52 is: 105,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,009.68 : 187,701.96 = 76,397.52 : x
  2. Step 2: Convert to fraction form
    136,009.68/187,701.96 = 76,397.52/x
  3. Step 3: Cross multiply
    136,009.68x = 187,701.96 × 76,397.52
  4. Step 4: Simplify right side
    136,009.68x = 14,339,964,243.14
  5. Step 5: Solve for x
    x = 14,339,964,243.14/136,009.68
  6. Step 6: Final answer
    x = 105,433.41

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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.