Home / 107,853.20-161,779.80-98,176.40

Finding the Fourth Proportional to 107,853.20, 161,779.80 and 98,176.40

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Solution

The fourth proportional to 107,853.20, 161,779.80 and 98,176.40 is: 147,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,853.20 : 161,779.80 = 98,176.40 : x
  2. Step 2: Convert to fraction form
    107,853.20/161,779.80 = 98,176.40/x
  3. Step 3: Cross multiply
    107,853.20x = 161,779.80 × 98,176.40
  4. Step 4: Simplify right side
    107,853.20x = 15,882,958,356.72
  5. Step 5: Solve for x
    x = 15,882,958,356.72/107,853.20
  6. Step 6: Final answer
    x = 147,264.60

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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.