Home / 104,218.68-143,822.28-56,472.12

Finding the Fourth Proportional to 104,218.68, 143,822.28 and 56,472.12

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Solution

The fourth proportional to 104,218.68, 143,822.28 and 56,472.12 is: 77,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,218.68 : 143,822.28 = 56,472.12 : x
  2. Step 2: Convert to fraction form
    104,218.68/143,822.28 = 56,472.12/x
  3. Step 3: Cross multiply
    104,218.68x = 143,822.28 × 56,472.12
  4. Step 4: Simplify right side
    104,218.68x = 8,121,949,266.60
  5. Step 5: Solve for x
    x = 8,121,949,266.60/104,218.68
  6. Step 6: Final answer
    x = 77,931.80

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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.