Home / 100,580.06-138,800.78-60,295.52

Finding the Fourth Proportional to 100,580.06, 138,800.78 and 60,295.52

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Solution

The fourth proportional to 100,580.06, 138,800.78 and 60,295.52 is: 83,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,580.06 : 138,800.78 = 60,295.52 : x
  2. Step 2: Convert to fraction form
    100,580.06/138,800.78 = 60,295.52/x
  3. Step 3: Cross multiply
    100,580.06x = 138,800.78 × 60,295.52
  4. Step 4: Simplify right side
    100,580.06x = 8,369,064,211.02
  5. Step 5: Solve for x
    x = 8,369,064,211.02/100,580.06
  6. Step 6: Final answer
    x = 83,207.99

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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.