Home / 156,919.19-216,545.91-85,301

Finding the Fourth Proportional to 156,919.19, 216,545.91 and 85,301

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Solution

The fourth proportional to 156,919.19, 216,545.91 and 85,301 is: 117,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.19 : 216,545.91 = 85,301 : x
  2. Step 2: Convert to fraction form
    156,919.19/216,545.91 = 85,301/x
  3. Step 3: Cross multiply
    156,919.19x = 216,545.91 × 85,301
  4. Step 4: Simplify right side
    156,919.19x = 18,471,582,668.91
  5. Step 5: Solve for x
    x = 18,471,582,668.91/156,919.19
  6. Step 6: Final answer
    x = 117,713.98

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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.