Home / 191,869.20-287,825.40-58,748.40

Finding the Fourth Proportional to 191,869.20, 287,825.40 and 58,748.40

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Solution

The fourth proportional to 191,869.20, 287,825.40 and 58,748.40 is: 88,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,869.20 : 287,825.40 = 58,748.40 : x
  2. Step 2: Convert to fraction form
    191,869.20/287,825.40 = 58,748.40/x
  3. Step 3: Cross multiply
    191,869.20x = 287,825.40 × 58,748.40
  4. Step 4: Simplify right side
    191,869.20x = 16,909,281,729.36
  5. Step 5: Solve for x
    x = 16,909,281,729.36/191,869.20
  6. Step 6: Final answer
    x = 88,129.21

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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.