Home / 125,268.32-172,870.24-68,678.48

Finding the Fourth Proportional to 125,268.32, 172,870.24 and 68,678.48

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Solution

The fourth proportional to 125,268.32, 172,870.24 and 68,678.48 is: 94,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,268.32 : 172,870.24 = 68,678.48 : x
  2. Step 2: Convert to fraction form
    125,268.32/172,870.24 = 68,678.48/x
  3. Step 3: Cross multiply
    125,268.32x = 172,870.24 × 68,678.48
  4. Step 4: Simplify right side
    125,268.32x = 11,872,465,320.44
  5. Step 5: Solve for x
    x = 11,872,465,320.44/125,268.32
  6. Step 6: Final answer
    x = 94,776.28

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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.