Home / 109,218.30-163,827.45-98,720.70

Finding the Fourth Proportional to 109,218.30, 163,827.45 and 98,720.70

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Solution

The fourth proportional to 109,218.30, 163,827.45 and 98,720.70 is: 148,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,218.30 : 163,827.45 = 98,720.70 : x
  2. Step 2: Convert to fraction form
    109,218.30/163,827.45 = 98,720.70/x
  3. Step 3: Cross multiply
    109,218.30x = 163,827.45 × 98,720.70
  4. Step 4: Simplify right side
    109,218.30x = 16,173,160,543.22
  5. Step 5: Solve for x
    x = 16,173,160,543.22/109,218.30
  6. Step 6: Final answer
    x = 148,081.05

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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.