Home / 147,718.62-221,616-42,545.79

Finding the Fourth Proportional to 147,718.62, 221,616 and 42,545.79

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Solution

The fourth proportional to 147,718.62, 221,616 and 42,545.79 is: 63,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,718.62 : 221,616 = 42,545.79 : x
  2. Step 2: Convert to fraction form
    147,718.62/221,616 = 42,545.79/x
  3. Step 3: Cross multiply
    147,718.62x = 221,616 × 42,545.79
  4. Step 4: Simplify right side
    147,718.62x = 9,428,827,796.64
  5. Step 5: Solve for x
    x = 9,428,827,796.64/147,718.62
  6. Step 6: Final answer
    x = 63,829.65

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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.