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Finding the Fourth Proportional to 104,254.38, 143,871.81 and 56,508.07

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Solution

The fourth proportional to 104,254.38, 143,871.81 and 56,508.07 is: 77,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,254.38 : 143,871.81 = 56,508.07 : x
  2. Step 2: Convert to fraction form
    104,254.38/143,871.81 = 56,508.07/x
  3. Step 3: Cross multiply
    104,254.38x = 143,871.81 × 56,508.07
  4. Step 4: Simplify right side
    104,254.38x = 8,129,918,310.51
  5. Step 5: Solve for x
    x = 8,129,918,310.51/104,254.38
  6. Step 6: Final answer
    x = 77,981.55

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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.