Home / 112,701.43-155,521.07-61,714.77

Finding the Fourth Proportional to 112,701.43, 155,521.07 and 61,714.77

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Solution

The fourth proportional to 112,701.43, 155,521.07 and 61,714.77 is: 85,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,701.43 : 155,521.07 = 61,714.77 : x
  2. Step 2: Convert to fraction form
    112,701.43/155,521.07 = 61,714.77/x
  3. Step 3: Cross multiply
    112,701.43x = 155,521.07 × 61,714.77
  4. Step 4: Simplify right side
    112,701.43x = 9,597,947,065.20
  5. Step 5: Solve for x
    x = 9,597,947,065.20/112,701.43
  6. Step 6: Final answer
    x = 85,162.60

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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.