Home / 142,867.40-197,117.15-112,558.82

Finding the Fourth Proportional to 142,867.40, 197,117.15 and 112,558.82

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Solution

The fourth proportional to 142,867.40, 197,117.15 and 112,558.82 is: 155,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,867.40 : 197,117.15 = 112,558.82 : x
  2. Step 2: Convert to fraction form
    142,867.40/197,117.15 = 112,558.82/x
  3. Step 3: Cross multiply
    142,867.40x = 197,117.15 × 112,558.82
  4. Step 4: Simplify right side
    142,867.40x = 22,187,272,257.38
  5. Step 5: Solve for x
    x = 22,187,272,257.38/142,867.40
  6. Step 6: Final answer
    x = 155,299.76

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1.5x scale

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.