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Finding the Fourth Proportional to 158,625.06, 218,908.71 and 87,008.10

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Solution

The fourth proportional to 158,625.06, 218,908.71 and 87,008.10 is: 120,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,625.06 : 218,908.71 = 87,008.10 : x
  2. Step 2: Convert to fraction form
    158,625.06/218,908.71 = 87,008.10/x
  3. Step 3: Cross multiply
    158,625.06x = 218,908.71 × 87,008.10
  4. Step 4: Simplify right side
    158,625.06x = 19,046,830,930.55
  5. Step 5: Solve for x
    x = 19,046,830,930.55/158,625.06
  6. Step 6: Final answer
    x = 120,074.54

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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.