Home / 147,439.59-221,158.77-42,258.66

Finding the Fourth Proportional to 147,439.59, 221,158.77 and 42,258.66

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Solution

The fourth proportional to 147,439.59, 221,158.77 and 42,258.66 is: 63,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,439.59 : 221,158.77 = 42,258.66 : x
  2. Step 2: Convert to fraction form
    147,439.59/221,158.77 = 42,258.66/x
  3. Step 3: Cross multiply
    147,439.59x = 221,158.77 × 42,258.66
  4. Step 4: Simplify right side
    147,439.59x = 9,345,873,267.45
  5. Step 5: Solve for x
    x = 9,345,873,267.45/147,439.59
  6. Step 6: Final answer
    x = 63,387.81

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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.