Home / 191,921.20-287,903.40-58,800.40

Finding the Fourth Proportional to 191,921.20, 287,903.40 and 58,800.40

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Solution

The fourth proportional to 191,921.20, 287,903.40 and 58,800.40 is: 88,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,921.20 : 287,903.40 = 58,800.40 : x
  2. Step 2: Convert to fraction form
    191,921.20/287,903.40 = 58,800.40/x
  3. Step 3: Cross multiply
    191,921.20x = 287,903.40 × 58,800.40
  4. Step 4: Simplify right side
    191,921.20x = 16,928,835,081.36
  5. Step 5: Solve for x
    x = 16,928,835,081.36/191,921.20
  6. Step 6: Final answer
    x = 88,207.22

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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.