Home / 142,868.40-197,118.52-112,559.82

Finding the Fourth Proportional to 142,868.40, 197,118.52 and 112,559.82

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Solution

The fourth proportional to 142,868.40, 197,118.52 and 112,559.82 is: 155,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,868.40 : 197,118.52 = 112,559.82 : x
  2. Step 2: Convert to fraction form
    142,868.40/197,118.52 = 112,559.82/x
  3. Step 3: Cross multiply
    142,868.40x = 197,118.52 × 112,559.82
  4. Step 4: Simplify right side
    142,868.40x = 22,187,625,129.87
  5. Step 5: Solve for x
    x = 22,187,625,129.87/142,868.40
  6. Step 6: Final answer
    x = 155,301.14

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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.