Home / 103,934.95-143,429.34-56,187.88

Finding the Fourth Proportional to 103,934.95, 143,429.34 and 56,187.88

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Solution

The fourth proportional to 103,934.95, 143,429.34 and 56,187.88 is: 77,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,934.95 : 143,429.34 = 56,187.88 : x
  2. Step 2: Convert to fraction form
    103,934.95/143,429.34 = 56,187.88/x
  3. Step 3: Cross multiply
    103,934.95x = 143,429.34 × 56,187.88
  4. Step 4: Simplify right side
    103,934.95x = 8,058,990,544.40
  5. Step 5: Solve for x
    x = 8,058,990,544.40/103,934.95
  6. Step 6: Final answer
    x = 77,538.79

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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.