Home / 103,862.53-143,330.34-56,115.87

Finding the Fourth Proportional to 103,862.53, 143,330.34 and 56,115.87

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Solution

The fourth proportional to 103,862.53, 143,330.34 and 56,115.87 is: 77,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,862.53 : 143,330.34 = 56,115.87 : x
  2. Step 2: Convert to fraction form
    103,862.53/143,330.34 = 56,115.87/x
  3. Step 3: Cross multiply
    103,862.53x = 143,330.34 × 56,115.87
  4. Step 4: Simplify right side
    103,862.53x = 8,043,106,726.50
  5. Step 5: Solve for x
    x = 8,043,106,726.50/103,862.53
  6. Step 6: Final answer
    x = 77,439.93

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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.