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Finding the Fourth Proportional to 158,817.60, 219,172.80 and 89,901.54

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Solution

The fourth proportional to 158,817.60, 219,172.80 and 89,901.54 is: 124,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,817.60 : 219,172.80 = 89,901.54 : x
  2. Step 2: Convert to fraction form
    158,817.60/219,172.80 = 89,901.54/x
  3. Step 3: Cross multiply
    158,817.60x = 219,172.80 × 89,901.54
  4. Step 4: Simplify right side
    158,817.60x = 19,703,972,246.11
  5. Step 5: Solve for x
    x = 19,703,972,246.11/158,817.60
  6. Step 6: Final answer
    x = 124,066.68

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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.