Home / 112,157.04-154,689.21-71,874.55

Finding the Fourth Proportional to 112,157.04, 154,689.21 and 71,874.55

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Solution

The fourth proportional to 112,157.04, 154,689.21 and 71,874.55 is: 99,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.04 : 154,689.21 = 71,874.55 : x
  2. Step 2: Convert to fraction form
    112,157.04/154,689.21 = 71,874.55/x
  3. Step 3: Cross multiply
    112,157.04x = 154,689.21 × 71,874.55
  4. Step 4: Simplify right side
    112,157.04x = 11,118,217,358.61
  5. Step 5: Solve for x
    x = 11,118,217,358.61/112,157.04
  6. Step 6: Final answer
    x = 99,130.80

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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.