Home / 125,111.87-172,618.21-70,661.15

Finding the Fourth Proportional to 125,111.87, 172,618.21 and 70,661.15

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Solution

The fourth proportional to 125,111.87, 172,618.21 and 70,661.15 is: 97,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.87 : 172,618.21 = 70,661.15 : x
  2. Step 2: Convert to fraction form
    125,111.87/172,618.21 = 70,661.15/x
  3. Step 3: Cross multiply
    125,111.87x = 172,618.21 × 70,661.15
  4. Step 4: Simplify right side
    125,111.87x = 12,197,401,229.54
  5. Step 5: Solve for x
    x = 12,197,401,229.54/125,111.87
  6. Step 6: Final answer
    x = 97,491.96

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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.