Home / 99,209.15-136,906.65-56,187.94

Finding the Fourth Proportional to 99,209.15, 136,906.65 and 56,187.94

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Solution

The fourth proportional to 99,209.15, 136,906.65 and 56,187.94 is: 77,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209.15 : 136,906.65 = 56,187.94 : x
  2. Step 2: Convert to fraction form
    99,209.15/136,906.65 = 56,187.94/x
  3. Step 3: Cross multiply
    99,209.15x = 136,906.65 × 56,187.94
  4. Step 4: Simplify right side
    99,209.15x = 7,692,502,635.80
  5. Step 5: Solve for x
    x = 7,692,502,635.80/99,209.15
  6. Step 6: Final answer
    x = 77,538.24

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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.