Home / 156,780.75-216,357.80-85,159.23

Finding the Fourth Proportional to 156,780.75, 216,357.80 and 85,159.23

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Solution

The fourth proportional to 156,780.75, 216,357.80 and 85,159.23 is: 117,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.75 : 216,357.80 = 85,159.23 : x
  2. Step 2: Convert to fraction form
    156,780.75/216,357.80 = 85,159.23/x
  3. Step 3: Cross multiply
    156,780.75x = 216,357.80 × 85,159.23
  4. Step 4: Simplify right side
    156,780.75x = 18,424,863,652.49
  5. Step 5: Solve for x
    x = 18,424,863,652.49/156,780.75
  6. Step 6: Final answer
    x = 117,519.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.