Home / 130,587.12-179,943.24-123,529.20

Finding the Fourth Proportional to 130,587.12, 179,943.24 and 123,529.20

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Solution

The fourth proportional to 130,587.12, 179,943.24 and 123,529.20 is: 170,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,587.12 : 179,943.24 = 123,529.20 : x
  2. Step 2: Convert to fraction form
    130,587.12/179,943.24 = 123,529.20/x
  3. Step 3: Cross multiply
    130,587.12x = 179,943.24 × 123,529.20
  4. Step 4: Simplify right side
    130,587.12x = 22,228,244,482.61
  5. Step 5: Solve for x
    x = 22,228,244,482.61/130,587.12
  6. Step 6: Final answer
    x = 170,217.74

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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.