Home / 156,623.39-216,140.18-88,639.13

Finding the Fourth Proportional to 156,623.39, 216,140.18 and 88,639.13

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Solution

The fourth proportional to 156,623.39, 216,140.18 and 88,639.13 is: 122,321.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,623.39 : 216,140.18 = 88,639.13 : x
  2. Step 2: Convert to fraction form
    156,623.39/216,140.18 = 88,639.13/x
  3. Step 3: Cross multiply
    156,623.39x = 216,140.18 × 88,639.13
  4. Step 4: Simplify right side
    156,623.39x = 19,158,475,989.35
  5. Step 5: Solve for x
    x = 19,158,475,989.35/156,623.39
  6. Step 6: Final answer
    x = 122,321.94

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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.