Home / 103,749.27-143,181.63-58,432.20

Finding the Fourth Proportional to 103,749.27, 143,181.63 and 58,432.20

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Solution

The fourth proportional to 103,749.27, 143,181.63 and 58,432.20 is: 80,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,749.27 : 143,181.63 = 58,432.20 : x
  2. Step 2: Convert to fraction form
    103,749.27/143,181.63 = 58,432.20/x
  3. Step 3: Cross multiply
    103,749.27x = 143,181.63 × 58,432.20
  4. Step 4: Simplify right side
    103,749.27x = 8,366,417,640.49
  5. Step 5: Solve for x
    x = 8,366,417,640.49/103,749.27
  6. Step 6: Final answer
    x = 80,640.74

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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.