Home / 100,313.22-138,446.45-62,085.07

Finding the Fourth Proportional to 100,313.22, 138,446.45 and 62,085.07

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Solution

The fourth proportional to 100,313.22, 138,446.45 and 62,085.07 is: 85,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,313.22 : 138,446.45 = 62,085.07 : x
  2. Step 2: Convert to fraction form
    100,313.22/138,446.45 = 62,085.07/x
  3. Step 3: Cross multiply
    100,313.22x = 138,446.45 × 62,085.07
  4. Step 4: Simplify right side
    100,313.22x = 8,595,457,539.50
  5. Step 5: Solve for x
    x = 8,595,457,539.50/100,313.22
  6. Step 6: Final answer
    x = 85,686.19

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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.