Home / 156,637.13-216,156.78-85,016.52

Finding the Fourth Proportional to 156,637.13, 216,156.78 and 85,016.52

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Solution

The fourth proportional to 156,637.13, 216,156.78 and 85,016.52 is: 117,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.13 : 216,156.78 = 85,016.52 : x
  2. Step 2: Convert to fraction form
    156,637.13/216,156.78 = 85,016.52/x
  3. Step 3: Cross multiply
    156,637.13x = 216,156.78 × 85,016.52
  4. Step 4: Simplify right side
    156,637.13x = 18,376,897,210.01
  5. Step 5: Solve for x
    x = 18,376,897,210.01/156,637.13
  6. Step 6: Final answer
    x = 117,321.46

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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.