Home / 112,403.84-155,123.52-62,101.76

Finding the Fourth Proportional to 112,403.84, 155,123.52 and 62,101.76

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Solution

The fourth proportional to 112,403.84, 155,123.52 and 62,101.76 is: 85,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,403.84 : 155,123.52 = 62,101.76 : x
  2. Step 2: Convert to fraction form
    112,403.84/155,123.52 = 62,101.76/x
  3. Step 3: Cross multiply
    112,403.84x = 155,123.52 × 62,101.76
  4. Step 4: Simplify right side
    112,403.84x = 9,633,443,609.40
  5. Step 5: Solve for x
    x = 9,633,443,609.40/112,403.84
  6. Step 6: Final answer
    x = 85,703.87

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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.