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Finding the Fourth Proportional to 158,862.98, 219,230.34 and 87,247.64

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Solution

The fourth proportional to 158,862.98, 219,230.34 and 87,247.64 is: 120,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,862.98 : 219,230.34 = 87,247.64 : x
  2. Step 2: Convert to fraction form
    158,862.98/219,230.34 = 87,247.64/x
  3. Step 3: Cross multiply
    158,862.98x = 219,230.34 × 87,247.64
  4. Step 4: Simplify right side
    158,862.98x = 19,127,329,781.40
  5. Step 5: Solve for x
    x = 19,127,329,781.40/158,862.98
  6. Step 6: Final answer
    x = 120,401.43

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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.