Home / 156,918.99-216,545.65-85,300.82

Finding the Fourth Proportional to 156,918.99, 216,545.65 and 85,300.82

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Solution

The fourth proportional to 156,918.99, 216,545.65 and 85,300.82 is: 117,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,918.99 : 216,545.65 = 85,300.82 : x
  2. Step 2: Convert to fraction form
    156,918.99/216,545.65 = 85,300.82/x
  3. Step 3: Cross multiply
    156,918.99x = 216,545.65 × 85,300.82
  4. Step 4: Simplify right side
    156,918.99x = 18,471,520,429.70
  5. Step 5: Solve for x
    x = 18,471,520,429.70/156,918.99
  6. Step 6: Final answer
    x = 117,713.74

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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.