Home / 99,108.60-136,767.92-56,087.29

Finding the Fourth Proportional to 99,108.60, 136,767.92 and 56,087.29

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Solution

The fourth proportional to 99,108.60, 136,767.92 and 56,087.29 is: 77,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.60 : 136,767.92 = 56,087.29 : x
  2. Step 2: Convert to fraction form
    99,108.60/136,767.92 = 56,087.29/x
  3. Step 3: Cross multiply
    99,108.60x = 136,767.92 × 56,087.29
  4. Step 4: Simplify right side
    99,108.60x = 7,670,941,270.69
  5. Step 5: Solve for x
    x = 7,670,941,270.69/99,108.60
  6. Step 6: Final answer
    x = 77,399.35

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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.