Home / 156,637.39-216,159.84-85,017.44

Finding the Fourth Proportional to 156,637.39, 216,159.84 and 85,017.44

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Solution

The fourth proportional to 156,637.39, 216,159.84 and 85,017.44 is: 117,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.39 : 216,159.84 = 85,017.44 : x
  2. Step 2: Convert to fraction form
    156,637.39/216,159.84 = 85,017.44/x
  3. Step 3: Cross multiply
    156,637.39x = 216,159.84 × 85,017.44
  4. Step 4: Simplify right side
    156,637.39x = 18,377,356,160.06
  5. Step 5: Solve for x
    x = 18,377,356,160.06/156,637.39
  6. Step 6: Final answer
    x = 117,324.20

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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.