Home / 99,088.20-136,855.30-65,247.96

Finding the Fourth Proportional to 99,088.20, 136,855.30 and 65,247.96

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Solution

The fourth proportional to 99,088.20, 136,855.30 and 65,247.96 is: 90,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,088.20 : 136,855.30 = 65,247.96 : x
  2. Step 2: Convert to fraction form
    99,088.20/136,855.30 = 65,247.96/x
  3. Step 3: Cross multiply
    99,088.20x = 136,855.30 × 65,247.96
  4. Step 4: Simplify right side
    99,088.20x = 8,929,529,140.19
  5. Step 5: Solve for x
    x = 8,929,529,140.19/99,088.20
  6. Step 6: Final answer
    x = 90,116.98

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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.