Home / 125,021.77-172,487.34-71,268.04

Finding the Fourth Proportional to 125,021.77, 172,487.34 and 71,268.04

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Solution

The fourth proportional to 125,021.77, 172,487.34 and 71,268.04 is: 98,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.77 : 172,487.34 = 71,268.04 : x
  2. Step 2: Convert to fraction form
    125,021.77/172,487.34 = 71,268.04/x
  3. Step 3: Cross multiply
    125,021.77x = 172,487.34 × 71,268.04
  4. Step 4: Simplify right side
    125,021.77x = 12,292,834,646.61
  5. Step 5: Solve for x
    x = 12,292,834,646.61/125,021.77
  6. Step 6: Final answer
    x = 98,325.55

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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.