Home / 156,948.13-216,587.35-85,328.15

Finding the Fourth Proportional to 156,948.13, 216,587.35 and 85,328.15

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Solution

The fourth proportional to 156,948.13, 216,587.35 and 85,328.15 is: 117,752.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.13 : 216,587.35 = 85,328.15 : x
  2. Step 2: Convert to fraction form
    156,948.13/216,587.35 = 85,328.15/x
  3. Step 3: Cross multiply
    156,948.13x = 216,587.35 × 85,328.15
  4. Step 4: Simplify right side
    156,948.13x = 18,480,998,217.05
  5. Step 5: Solve for x
    x = 18,480,998,217.05/156,948.13
  6. Step 6: Final answer
    x = 117,752.27

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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.