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Finding the Fourth Proportional to 145,307.92, 217,527.36 and 88,970.80

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Solution

The fourth proportional to 145,307.92, 217,527.36 and 88,970.80 is: 133,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,307.92 : 217,527.36 = 88,970.80 : x
  2. Step 2: Convert to fraction form
    145,307.92/217,527.36 = 88,970.80/x
  3. Step 3: Cross multiply
    145,307.92x = 217,527.36 × 88,970.80
  4. Step 4: Simplify right side
    145,307.92x = 19,353,583,241.09
  5. Step 5: Solve for x
    x = 19,353,583,241.09/145,307.92
  6. Step 6: Final answer
    x = 133,190.15

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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.