Home / 121,545.18-182,399.31-42,659.64

Finding the Fourth Proportional to 121,545.18, 182,399.31 and 42,659.64

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Solution

The fourth proportional to 121,545.18, 182,399.31 and 42,659.64 is: 64,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,545.18 : 182,399.31 = 42,659.64 : x
  2. Step 2: Convert to fraction form
    121,545.18/182,399.31 = 42,659.64/x
  3. Step 3: Cross multiply
    121,545.18x = 182,399.31 × 42,659.64
  4. Step 4: Simplify right side
    121,545.18x = 7,781,088,900.85
  5. Step 5: Solve for x
    x = 7,781,088,900.85/121,545.18
  6. Step 6: Final answer
    x = 64,018.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.