Home / 171,037.90-256,384.05-77,610.70

Finding the Fourth Proportional to 171,037.90, 256,384.05 and 77,610.70

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Solution

The fourth proportional to 171,037.90, 256,384.05 and 77,610.70 is: 116,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,037.90 : 256,384.05 = 77,610.70 : x
  2. Step 2: Convert to fraction form
    171,037.90/256,384.05 = 77,610.70/x
  3. Step 3: Cross multiply
    171,037.90x = 256,384.05 × 77,610.70
  4. Step 4: Simplify right side
    171,037.90x = 19,898,145,589.34
  5. Step 5: Solve for x
    x = 19,898,145,589.34/171,037.90
  6. Step 6: Final answer
    x = 116,337.64

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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.