Home / 156,970.23-216,616.57-85,349.62

Finding the Fourth Proportional to 156,970.23, 216,616.57 and 85,349.62

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Solution

The fourth proportional to 156,970.23, 216,616.57 and 85,349.62 is: 117,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970.23 : 216,616.57 = 85,349.62 : x
  2. Step 2: Convert to fraction form
    156,970.23/216,616.57 = 85,349.62/x
  3. Step 3: Cross multiply
    156,970.23x = 216,616.57 × 85,349.62
  4. Step 4: Simplify right side
    156,970.23x = 18,488,141,935.20
  5. Step 5: Solve for x
    x = 18,488,141,935.20/156,970.23
  6. Step 6: Final answer
    x = 117,781.20

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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.