Home / 103,724.40-155,586.60-98,540.40

Finding the Fourth Proportional to 103,724.40, 155,586.60 and 98,540.40

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Solution

The fourth proportional to 103,724.40, 155,586.60 and 98,540.40 is: 147,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,724.40 : 155,586.60 = 98,540.40 : x
  2. Step 2: Convert to fraction form
    103,724.40/155,586.60 = 98,540.40/x
  3. Step 3: Cross multiply
    103,724.40x = 155,586.60 × 98,540.40
  4. Step 4: Simplify right side
    103,724.40x = 15,331,565,798.64
  5. Step 5: Solve for x
    x = 15,331,565,798.64/103,724.40
  6. Step 6: Final answer
    x = 147,810.60

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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.