Home / 191,982.10-288,117.15-98,439.70

Finding the Fourth Proportional to 191,982.10, 288,117.15 and 98,439.70

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Solution

The fourth proportional to 191,982.10, 288,117.15 and 98,439.70 is: 147,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,982.10 : 288,117.15 = 98,439.70 : x
  2. Step 2: Convert to fraction form
    191,982.10/288,117.15 = 98,439.70/x
  3. Step 3: Cross multiply
    191,982.10x = 288,117.15 × 98,439.70
  4. Step 4: Simplify right side
    191,982.10x = 28,362,165,810.86
  5. Step 5: Solve for x
    x = 28,362,165,810.86/191,982.10
  6. Step 6: Final answer
    x = 147,733.39

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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.