Home / 113,870.30-170,805.45-72,500.70

Finding the Fourth Proportional to 113,870.30, 170,805.45 and 72,500.70

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Solution

The fourth proportional to 113,870.30, 170,805.45 and 72,500.70 is: 108,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,870.30 : 170,805.45 = 72,500.70 : x
  2. Step 2: Convert to fraction form
    113,870.30/170,805.45 = 72,500.70/x
  3. Step 3: Cross multiply
    113,870.30x = 170,805.45 × 72,500.70
  4. Step 4: Simplify right side
    113,870.30x = 12,383,514,688.82
  5. Step 5: Solve for x
    x = 12,383,514,688.82/113,870.30
  6. Step 6: Final answer
    x = 108,751.05

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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.