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Finding the Fourth Proportional to 147,854.70, 221,891.40 and 97,918.20

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Solution

The fourth proportional to 147,854.70, 221,891.40 and 97,918.20 is: 146,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,854.70 : 221,891.40 = 97,918.20 : x
  2. Step 2: Convert to fraction form
    147,854.70/221,891.40 = 97,918.20/x
  3. Step 3: Cross multiply
    147,854.70x = 221,891.40 × 97,918.20
  4. Step 4: Simplify right side
    147,854.70x = 21,727,206,483.48
  5. Step 5: Solve for x
    x = 21,727,206,483.48/147,854.70
  6. Step 6: Final answer
    x = 146,949.72

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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.