Home / 191,985.40-287,735.10-73,498.60

Finding the Fourth Proportional to 191,985.40, 287,735.10 and 73,498.60

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Solution

The fourth proportional to 191,985.40, 287,735.10 and 73,498.60 is: 110,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,985.40 : 287,735.10 = 73,498.60 : x
  2. Step 2: Convert to fraction form
    191,985.40/287,735.10 = 73,498.60/x
  3. Step 3: Cross multiply
    191,985.40x = 287,735.10 × 73,498.60
  4. Step 4: Simplify right side
    191,985.40x = 21,148,127,020.86
  5. Step 5: Solve for x
    x = 21,148,127,020.86/191,985.40
  6. Step 6: Final answer
    x = 110,154.87

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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.