Home / 109,810.60-164,618.70-98,000.80

Finding the Fourth Proportional to 109,810.60, 164,618.70 and 98,000.80

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Solution

The fourth proportional to 109,810.60, 164,618.70 and 98,000.80 is: 146,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,810.60 : 164,618.70 = 98,000.80 : x
  2. Step 2: Convert to fraction form
    109,810.60/164,618.70 = 98,000.80/x
  3. Step 3: Cross multiply
    109,810.60x = 164,618.70 × 98,000.80
  4. Step 4: Simplify right side
    109,810.60x = 16,132,764,294.96
  5. Step 5: Solve for x
    x = 16,132,764,294.96/109,810.60
  6. Step 6: Final answer
    x = 146,914.45

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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.