Home / 187,293.47-280,221.35-107,369.76

Finding the Fourth Proportional to 187,293.47, 280,221.35 and 107,369.76

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Solution

The fourth proportional to 187,293.47, 280,221.35 and 107,369.76 is: 160,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,293.47 : 280,221.35 = 107,369.76 : x
  2. Step 2: Convert to fraction form
    187,293.47/280,221.35 = 107,369.76/x
  3. Step 3: Cross multiply
    187,293.47x = 280,221.35 × 107,369.76
  4. Step 4: Simplify right side
    187,293.47x = 30,087,298,559.53
  5. Step 5: Solve for x
    x = 30,087,298,559.53/187,293.47
  6. Step 6: Final answer
    x = 160,642.54

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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.