Home / 99,038.80-136,726.66-76,494.48

Finding the Fourth Proportional to 99,038.80, 136,726.66 and 76,494.48

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Solution

The fourth proportional to 99,038.80, 136,726.66 and 76,494.48 is: 105,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038.80 : 136,726.66 = 76,494.48 : x
  2. Step 2: Convert to fraction form
    99,038.80/136,726.66 = 76,494.48/x
  3. Step 3: Cross multiply
    99,038.80x = 136,726.66 × 76,494.48
  4. Step 4: Simplify right side
    99,038.80x = 10,458,834,758.84
  5. Step 5: Solve for x
    x = 10,458,834,758.84/99,038.80
  6. Step 6: Final answer
    x = 105,603.41

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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.