Home / 111,230.10-153,374.54-70,879.95

Finding the Fourth Proportional to 111,230.10, 153,374.54 and 70,879.95

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Solution

The fourth proportional to 111,230.10, 153,374.54 and 70,879.95 is: 97,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,230.10 : 153,374.54 = 70,879.95 : x
  2. Step 2: Convert to fraction form
    111,230.10/153,374.54 = 70,879.95/x
  3. Step 3: Cross multiply
    111,230.10x = 153,374.54 × 70,879.95
  4. Step 4: Simplify right side
    111,230.10x = 10,871,179,726.47
  5. Step 5: Solve for x
    x = 10,871,179,726.47/111,230.10
  6. Step 6: Final answer
    x = 97,735.95

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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.