Home / 99,066.12-136,681.38-60,786.36

Finding the Fourth Proportional to 99,066.12, 136,681.38 and 60,786.36

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Solution

The fourth proportional to 99,066.12, 136,681.38 and 60,786.36 is: 83,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,066.12 : 136,681.38 = 60,786.36 : x
  2. Step 2: Convert to fraction form
    99,066.12/136,681.38 = 60,786.36/x
  3. Step 3: Cross multiply
    99,066.12x = 136,681.38 × 60,786.36
  4. Step 4: Simplify right side
    99,066.12x = 8,308,363,569.98
  5. Step 5: Solve for x
    x = 8,308,363,569.98/99,066.12
  6. Step 6: Final answer
    x = 83,866.85

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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.