Home / 158,267.88-218,401.38-86,634.18

Finding the Fourth Proportional to 158,267.88, 218,401.38 and 86,634.18

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Solution

The fourth proportional to 158,267.88, 218,401.38 and 86,634.18 is: 119,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,267.88 : 218,401.38 = 86,634.18 : x
  2. Step 2: Convert to fraction form
    158,267.88/218,401.38 = 86,634.18/x
  3. Step 3: Cross multiply
    158,267.88x = 218,401.38 × 86,634.18
  4. Step 4: Simplify right side
    158,267.88x = 18,921,024,467.17
  5. Step 5: Solve for x
    x = 18,921,024,467.17/158,267.88
  6. Step 6: Final answer
    x = 119,550.63

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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.