Home / 125,001.51-172,500.87-67,639.57

Finding the Fourth Proportional to 125,001.51, 172,500.87 and 67,639.57

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Solution

The fourth proportional to 125,001.51, 172,500.87 and 67,639.57 is: 93,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,001.51 : 172,500.87 = 67,639.57 : x
  2. Step 2: Convert to fraction form
    125,001.51/172,500.87 = 67,639.57/x
  3. Step 3: Cross multiply
    125,001.51x = 172,500.87 × 67,639.57
  4. Step 4: Simplify right side
    125,001.51x = 11,667,884,671.43
  5. Step 5: Solve for x
    x = 11,667,884,671.43/125,001.51
  6. Step 6: Final answer
    x = 93,341.95

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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.