Home / 156,986.30-235,479.45-51,799.70

Finding the Fourth Proportional to 156,986.30, 235,479.45 and 51,799.70

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Solution

The fourth proportional to 156,986.30, 235,479.45 and 51,799.70 is: 77,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.30 : 235,479.45 = 51,799.70 : x
  2. Step 2: Convert to fraction form
    156,986.30/235,479.45 = 51,799.70/x
  3. Step 3: Cross multiply
    156,986.30x = 235,479.45 × 51,799.70
  4. Step 4: Simplify right side
    156,986.30x = 12,197,764,866.17
  5. Step 5: Solve for x
    x = 12,197,764,866.17/156,986.30
  6. Step 6: Final answer
    x = 77,699.55

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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.