Home / 118,215.40-177,323.10-80,890.60

Finding the Fourth Proportional to 118,215.40, 177,323.10 and 80,890.60

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Solution

The fourth proportional to 118,215.40, 177,323.10 and 80,890.60 is: 121,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215.40 : 177,323.10 = 80,890.60 : x
  2. Step 2: Convert to fraction form
    118,215.40/177,323.10 = 80,890.60/x
  3. Step 3: Cross multiply
    118,215.40x = 177,323.10 × 80,890.60
  4. Step 4: Simplify right side
    118,215.40x = 14,343,771,952.86
  5. Step 5: Solve for x
    x = 14,343,771,952.86/118,215.40
  6. Step 6: Final answer
    x = 121,335.90

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1.5x scale

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.