Home / 191,929.20-287,785.80-73,604.40

Finding the Fourth Proportional to 191,929.20, 287,785.80 and 73,604.40

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Solution

The fourth proportional to 191,929.20, 287,785.80 and 73,604.40 is: 110,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.20 : 287,785.80 = 73,604.40 : x
  2. Step 2: Convert to fraction form
    191,929.20/287,785.80 = 73,604.40/x
  3. Step 3: Cross multiply
    191,929.20x = 287,785.80 × 73,604.40
  4. Step 4: Simplify right side
    191,929.20x = 21,182,301,137.52
  5. Step 5: Solve for x
    x = 21,182,301,137.52/191,929.20
  6. Step 6: Final answer
    x = 110,365.18

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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.