Home / 104,189.48-143,780.18-56,441.64

Finding the Fourth Proportional to 104,189.48, 143,780.18 and 56,441.64

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Solution

The fourth proportional to 104,189.48, 143,780.18 and 56,441.64 is: 77,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,189.48 : 143,780.18 = 56,441.64 : x
  2. Step 2: Convert to fraction form
    104,189.48/143,780.18 = 56,441.64/x
  3. Step 3: Cross multiply
    104,189.48x = 143,780.18 × 56,441.64
  4. Step 4: Simplify right side
    104,189.48x = 8,115,189,158.70
  5. Step 5: Solve for x
    x = 8,115,189,158.70/104,189.48
  6. Step 6: Final answer
    x = 77,888.76

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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.