Home / 125,101.05-172,639.52-68,512.42

Finding the Fourth Proportional to 125,101.05, 172,639.52 and 68,512.42

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Solution

The fourth proportional to 125,101.05, 172,639.52 and 68,512.42 is: 94,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.05 : 172,639.52 = 68,512.42 : x
  2. Step 2: Convert to fraction form
    125,101.05/172,639.52 = 68,512.42/x
  3. Step 3: Cross multiply
    125,101.05x = 172,639.52 × 68,512.42
  4. Step 4: Simplify right side
    125,101.05x = 11,827,951,302.84
  5. Step 5: Solve for x
    x = 11,827,951,302.84/125,101.05
  6. Step 6: Final answer
    x = 94,547.18

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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.