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Finding the Fourth Proportional to 160,751.39, 221,708.95 and 103,397.31

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Solution

The fourth proportional to 160,751.39, 221,708.95 and 103,397.31 is: 142,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,751.39 : 221,708.95 = 103,397.31 : x
  2. Step 2: Convert to fraction form
    160,751.39/221,708.95 = 103,397.31/x
  3. Step 3: Cross multiply
    160,751.39x = 221,708.95 × 103,397.31
  4. Step 4: Simplify right side
    160,751.39x = 22,924,108,774.43
  5. Step 5: Solve for x
    x = 22,924,108,774.43/160,751.39
  6. Step 6: Final answer
    x = 142,605.98

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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.