Home / 89,740.90-134,720.70-89,084.80

Finding the Fourth Proportional to 89,740.90, 134,720.70 and 89,084.80

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Solution

The fourth proportional to 89,740.90, 134,720.70 and 89,084.80 is: 133,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,740.90 : 134,720.70 = 89,084.80 : x
  2. Step 2: Convert to fraction form
    89,740.90/134,720.70 = 89,084.80/x
  3. Step 3: Cross multiply
    89,740.90x = 134,720.70 × 89,084.80
  4. Step 4: Simplify right side
    89,740.90x = 12,001,566,615.36
  5. Step 5: Solve for x
    x = 12,001,566,615.36/89,740.90
  6. Step 6: Final answer
    x = 133,735.75

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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.