Home / 125,142.96-187,730.10-40,911.60

Finding the Fourth Proportional to 125,142.96, 187,730.10 and 40,911.60

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Solution

The fourth proportional to 125,142.96, 187,730.10 and 40,911.60 is: 61,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,142.96 : 187,730.10 = 40,911.60 : x
  2. Step 2: Convert to fraction form
    125,142.96/187,730.10 = 40,911.60/x
  3. Step 3: Cross multiply
    125,142.96x = 187,730.10 × 40,911.60
  4. Step 4: Simplify right side
    125,142.96x = 7,680,338,759.16
  5. Step 5: Solve for x
    x = 7,680,338,759.16/125,142.96
  6. Step 6: Final answer
    x = 61,372.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.