Home / 86,517.18-119,348.10-70,402.77

Finding the Fourth Proportional to 86,517.18, 119,348.10 and 70,402.77

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Solution

The fourth proportional to 86,517.18, 119,348.10 and 70,402.77 is: 97,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,517.18 : 119,348.10 = 70,402.77 : x
  2. Step 2: Convert to fraction form
    86,517.18/119,348.10 = 70,402.77/x
  3. Step 3: Cross multiply
    86,517.18x = 119,348.10 × 70,402.77
  4. Step 4: Simplify right side
    86,517.18x = 8,402,436,834.24
  5. Step 5: Solve for x
    x = 8,402,436,834.24/86,517.18
  6. Step 6: Final answer
    x = 97,118.71

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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.