Home / 156,969.28-216,616.53-85,349.35

Finding the Fourth Proportional to 156,969.28, 216,616.53 and 85,349.35

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Solution

The fourth proportional to 156,969.28, 216,616.53 and 85,349.35 is: 117,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.28 : 216,616.53 = 85,349.35 : x
  2. Step 2: Convert to fraction form
    156,969.28/216,616.53 = 85,349.35/x
  3. Step 3: Cross multiply
    156,969.28x = 216,616.53 × 85,349.35
  4. Step 4: Simplify right side
    156,969.28x = 18,488,080,034.76
  5. Step 5: Solve for x
    x = 18,488,080,034.76/156,969.28
  6. Step 6: Final answer
    x = 117,781.52

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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.