Home / 112,344.18-155,064.85-69,878.58

Finding the Fourth Proportional to 112,344.18, 155,064.85 and 69,878.58

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Solution

The fourth proportional to 112,344.18, 155,064.85 and 69,878.58 is: 96,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,344.18 : 155,064.85 = 69,878.58 : x
  2. Step 2: Convert to fraction form
    112,344.18/155,064.85 = 69,878.58/x
  3. Step 3: Cross multiply
    112,344.18x = 155,064.85 × 69,878.58
  4. Step 4: Simplify right side
    112,344.18x = 10,835,711,525.91
  5. Step 5: Solve for x
    x = 10,835,711,525.91/112,344.18
  6. Step 6: Final answer
    x = 96,451.03

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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.