Home / 191,561.34-287,398.89-98,132.70

Finding the Fourth Proportional to 191,561.34, 287,398.89 and 98,132.70

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Solution

The fourth proportional to 191,561.34, 287,398.89 and 98,132.70 is: 147,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,561.34 : 287,398.89 = 98,132.70 : x
  2. Step 2: Convert to fraction form
    191,561.34/287,398.89 = 98,132.70/x
  3. Step 3: Cross multiply
    191,561.34x = 287,398.89 × 98,132.70
  4. Step 4: Simplify right side
    191,561.34x = 28,203,229,052.70
  5. Step 5: Solve for x
    x = 28,203,229,052.70/191,561.34
  6. Step 6: Final answer
    x = 147,228.19

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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.