Home / 121,282.10-181,750.35-89,443.70

Finding the Fourth Proportional to 121,282.10, 181,750.35 and 89,443.70

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Solution

The fourth proportional to 121,282.10, 181,750.35 and 89,443.70 is: 134,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,282.10 : 181,750.35 = 89,443.70 : x
  2. Step 2: Convert to fraction form
    121,282.10/181,750.35 = 89,443.70/x
  3. Step 3: Cross multiply
    121,282.10x = 181,750.35 × 89,443.70
  4. Step 4: Simplify right side
    121,282.10x = 16,256,423,780.30
  5. Step 5: Solve for x
    x = 16,256,423,780.30/121,282.10
  6. Step 6: Final answer
    x = 134,038.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.