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Finding the Fourth Proportional to 158,602.85, 218,836.48 and 90,598.09

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Solution

The fourth proportional to 158,602.85, 218,836.48 and 90,598.09 is: 125,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,602.85 : 218,836.48 = 90,598.09 : x
  2. Step 2: Convert to fraction form
    158,602.85/218,836.48 = 90,598.09/x
  3. Step 3: Cross multiply
    158,602.85x = 218,836.48 × 90,598.09
  4. Step 4: Simplify right side
    158,602.85x = 19,826,167,110.32
  5. Step 5: Solve for x
    x = 19,826,167,110.32/158,602.85
  6. Step 6: Final answer
    x = 125,005.11

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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.