Home / 112,065.85-154,651.09-61,079.15

Finding the Fourth Proportional to 112,065.85, 154,651.09 and 61,079.15

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Solution

The fourth proportional to 112,065.85, 154,651.09 and 61,079.15 is: 84,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.85 : 154,651.09 = 61,079.15 : x
  2. Step 2: Convert to fraction form
    112,065.85/154,651.09 = 61,079.15/x
  3. Step 3: Cross multiply
    112,065.85x = 154,651.09 × 61,079.15
  4. Step 4: Simplify right side
    112,065.85x = 9,445,957,123.77
  5. Step 5: Solve for x
    x = 9,445,957,123.77/112,065.85
  6. Step 6: Final answer
    x = 84,289.35

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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.