Home / 104,291.84-143,921.40-56,545.04

Finding the Fourth Proportional to 104,291.84, 143,921.40 and 56,545.04

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Solution

The fourth proportional to 104,291.84, 143,921.40 and 56,545.04 is: 78,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,291.84 : 143,921.40 = 56,545.04 : x
  2. Step 2: Convert to fraction form
    104,291.84/143,921.40 = 56,545.04/x
  3. Step 3: Cross multiply
    104,291.84x = 143,921.40 × 56,545.04
  4. Step 4: Simplify right side
    104,291.84x = 8,138,041,319.86
  5. Step 5: Solve for x
    x = 8,138,041,319.86/104,291.84
  6. Step 6: Final answer
    x = 78,031.43

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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.