Home / 160,142.38-221,000.19-103,652.17

Finding the Fourth Proportional to 160,142.38, 221,000.19 and 103,652.17

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Solution

The fourth proportional to 160,142.38, 221,000.19 and 103,652.17 is: 143,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,142.38 : 221,000.19 = 103,652.17 : x
  2. Step 2: Convert to fraction form
    160,142.38/221,000.19 = 103,652.17/x
  3. Step 3: Cross multiply
    160,142.38x = 221,000.19 × 103,652.17
  4. Step 4: Simplify right side
    160,142.38x = 22,907,149,263.91
  5. Step 5: Solve for x
    x = 22,907,149,263.91/160,142.38
  6. Step 6: Final answer
    x = 143,042.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.