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Finding the Fourth Proportional to 160,613.70, 240,920.55 and 85,964.10

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Solution

The fourth proportional to 160,613.70, 240,920.55 and 85,964.10 is: 128,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,613.70 : 240,920.55 = 85,964.10 : x
  2. Step 2: Convert to fraction form
    160,613.70/240,920.55 = 85,964.10/x
  3. Step 3: Cross multiply
    160,613.70x = 240,920.55 × 85,964.10
  4. Step 4: Simplify right side
    160,613.70x = 20,710,518,252.26
  5. Step 5: Solve for x
    x = 20,710,518,252.26/160,613.70
  6. Step 6: Final answer
    x = 128,946.15

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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.