Home / 147,014.08-220,350.25-66,931.61

Finding the Fourth Proportional to 147,014.08, 220,350.25 and 66,931.61

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Solution

The fourth proportional to 147,014.08, 220,350.25 and 66,931.61 is: 100,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,014.08 : 220,350.25 = 66,931.61 : x
  2. Step 2: Convert to fraction form
    147,014.08/220,350.25 = 66,931.61/x
  3. Step 3: Cross multiply
    147,014.08x = 220,350.25 × 66,931.61
  4. Step 4: Simplify right side
    147,014.08x = 14,748,395,727.32
  5. Step 5: Solve for x
    x = 14,748,395,727.32/147,014.08
  6. Step 6: Final answer
    x = 100,319.62

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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.