Home / 130,387.15-179,938.56-76,677.13

Finding the Fourth Proportional to 130,387.15, 179,938.56 and 76,677.13

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Solution

The fourth proportional to 130,387.15, 179,938.56 and 76,677.13 is: 105,816.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,387.15 : 179,938.56 = 76,677.13 : x
  2. Step 2: Convert to fraction form
    130,387.15/179,938.56 = 76,677.13/x
  3. Step 3: Cross multiply
    130,387.15x = 179,938.56 × 76,677.13
  4. Step 4: Simplify right side
    130,387.15x = 13,797,172,357.13
  5. Step 5: Solve for x
    x = 13,797,172,357.13/130,387.15
  6. Step 6: Final answer
    x = 105,816.96

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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.