Home / 191,723.80-287,628.90-112,797.40

Finding the Fourth Proportional to 191,723.80, 287,628.90 and 112,797.40

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Solution

The fourth proportional to 191,723.80, 287,628.90 and 112,797.40 is: 169,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,723.80 : 287,628.90 = 112,797.40 : x
  2. Step 2: Convert to fraction form
    191,723.80/287,628.90 = 112,797.40/x
  3. Step 3: Cross multiply
    191,723.80x = 287,628.90 × 112,797.40
  4. Step 4: Simplify right side
    191,723.80x = 32,443,792,084.86
  5. Step 5: Solve for x
    x = 32,443,792,084.86/191,723.80
  6. Step 6: Final answer
    x = 169,221.52

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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.