Home / 104,082.18-143,633.80-56,335.50

Finding the Fourth Proportional to 104,082.18, 143,633.80 and 56,335.50

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Solution

The fourth proportional to 104,082.18, 143,633.80 and 56,335.50 is: 77,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,082.18 : 143,633.80 = 56,335.50 : x
  2. Step 2: Convert to fraction form
    104,082.18/143,633.80 = 56,335.50/x
  3. Step 3: Cross multiply
    104,082.18x = 143,633.80 × 56,335.50
  4. Step 4: Simplify right side
    104,082.18x = 8,091,681,939.90
  5. Step 5: Solve for x
    x = 8,091,681,939.90/104,082.18
  6. Step 6: Final answer
    x = 77,743.20

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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.