Home / 104,188.65-143,780.40-56,442.18

Finding the Fourth Proportional to 104,188.65, 143,780.40 and 56,442.18

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Solution

The fourth proportional to 104,188.65, 143,780.40 and 56,442.18 is: 77,890.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,188.65 : 143,780.40 = 56,442.18 : x
  2. Step 2: Convert to fraction form
    104,188.65/143,780.40 = 56,442.18/x
  3. Step 3: Cross multiply
    104,188.65x = 143,780.40 × 56,442.18
  4. Step 4: Simplify right side
    104,188.65x = 8,115,279,217.27
  5. Step 5: Solve for x
    x = 8,115,279,217.27/104,188.65
  6. Step 6: Final answer
    x = 77,890.24

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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.