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Finding the Fourth Proportional to 145,191.96, 217,277.64 and 89,016.84

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Solution

The fourth proportional to 145,191.96, 217,277.64 and 89,016.84 is: 133,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,191.96 : 217,277.64 = 89,016.84 : x
  2. Step 2: Convert to fraction form
    145,191.96/217,277.64 = 89,016.84/x
  3. Step 3: Cross multiply
    145,191.96x = 217,277.64 × 89,016.84
  4. Step 4: Simplify right side
    145,191.96x = 19,341,368,915.46
  5. Step 5: Solve for x
    x = 19,341,368,915.46/145,191.96
  6. Step 6: Final answer
    x = 133,212.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.