Home / 130,343.28-179,960.80-87,886.32

Finding the Fourth Proportional to 130,343.28, 179,960.80 and 87,886.32

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Solution

The fourth proportional to 130,343.28, 179,960.80 and 87,886.32 is: 121,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,343.28 : 179,960.80 = 87,886.32 : x
  2. Step 2: Convert to fraction form
    130,343.28/179,960.80 = 87,886.32/x
  3. Step 3: Cross multiply
    130,343.28x = 179,960.80 × 87,886.32
  4. Step 4: Simplify right side
    130,343.28x = 15,816,092,456.26
  5. Step 5: Solve for x
    x = 15,816,092,456.26/130,343.28
  6. Step 6: Final answer
    x = 121,341.83

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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.