Home / 125,175.42-172,758.15-71,448.12

Finding the Fourth Proportional to 125,175.42, 172,758.15 and 71,448.12

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Solution

The fourth proportional to 125,175.42, 172,758.15 and 71,448.12 is: 98,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,175.42 : 172,758.15 = 71,448.12 : x
  2. Step 2: Convert to fraction form
    125,175.42/172,758.15 = 71,448.12/x
  3. Step 3: Cross multiply
    125,175.42x = 172,758.15 × 71,448.12
  4. Step 4: Simplify right side
    125,175.42x = 12,343,245,032.18
  5. Step 5: Solve for x
    x = 12,343,245,032.18/125,175.42
  6. Step 6: Final answer
    x = 98,607.58

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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.