Home / 100,313.73-138,447.20-62,085.59

Finding the Fourth Proportional to 100,313.73, 138,447.20 and 62,085.59

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Solution

The fourth proportional to 100,313.73, 138,447.20 and 62,085.59 is: 85,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,313.73 : 138,447.20 = 62,085.59 : x
  2. Step 2: Convert to fraction form
    100,313.73/138,447.20 = 62,085.59/x
  3. Step 3: Cross multiply
    100,313.73x = 138,447.20 × 62,085.59
  4. Step 4: Simplify right side
    100,313.73x = 8,595,575,093.18
  5. Step 5: Solve for x
    x = 8,595,575,093.18/100,313.73
  6. Step 6: Final answer
    x = 85,686.93

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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.