Home / 112,123.24-154,731.30-61,135.56

Finding the Fourth Proportional to 112,123.24, 154,731.30 and 61,135.56

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Solution

The fourth proportional to 112,123.24, 154,731.30 and 61,135.56 is: 84,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.24 : 154,731.30 = 61,135.56 : x
  2. Step 2: Convert to fraction form
    112,123.24/154,731.30 = 61,135.56/x
  3. Step 3: Cross multiply
    112,123.24x = 154,731.30 × 61,135.56
  4. Step 4: Simplify right side
    112,123.24x = 9,459,584,675.03
  5. Step 5: Solve for x
    x = 9,459,584,675.03/112,123.24
  6. Step 6: Final answer
    x = 84,367.74

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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.