Home / 124,811.20-187,216.80-71,667.10

Finding the Fourth Proportional to 124,811.20, 187,216.80 and 71,667.10

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Solution

The fourth proportional to 124,811.20, 187,216.80 and 71,667.10 is: 107,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.20 : 187,216.80 = 71,667.10 : x
  2. Step 2: Convert to fraction form
    124,811.20/187,216.80 = 71,667.10/x
  3. Step 3: Cross multiply
    124,811.20x = 187,216.80 × 71,667.10
  4. Step 4: Simplify right side
    124,811.20x = 13,417,285,127.28
  5. Step 5: Solve for x
    x = 13,417,285,127.28/124,811.20
  6. Step 6: Final answer
    x = 107,500.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.