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Finding the Fourth Proportional to 97,639.60, 146,459.40 and 89,766.40

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Solution

The fourth proportional to 97,639.60, 146,459.40 and 89,766.40 is: 134,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,639.60 : 146,459.40 = 89,766.40 : x
  2. Step 2: Convert to fraction form
    97,639.60/146,459.40 = 89,766.40/x
  3. Step 3: Cross multiply
    97,639.60x = 146,459.40 × 89,766.40
  4. Step 4: Simplify right side
    97,639.60x = 13,147,133,084.16
  5. Step 5: Solve for x
    x = 13,147,133,084.16/97,639.60
  6. Step 6: Final answer
    x = 134,649.60

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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.