Home / 128,224.98-176,941.18-70,863.61

Finding the Fourth Proportional to 128,224.98, 176,941.18 and 70,863.61

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Solution

The fourth proportional to 128,224.98, 176,941.18 and 70,863.61 is: 97,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,224.98 : 176,941.18 = 70,863.61 : x
  2. Step 2: Convert to fraction form
    128,224.98/176,941.18 = 70,863.61/x
  3. Step 3: Cross multiply
    128,224.98x = 176,941.18 × 70,863.61
  4. Step 4: Simplify right side
    128,224.98x = 12,538,690,772.46
  5. Step 5: Solve for x
    x = 12,538,690,772.46/128,224.98
  6. Step 6: Final answer
    x = 97,786.65

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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.