Home / 102,440.60-141,315.33-68,438.22

Finding the Fourth Proportional to 102,440.60, 141,315.33 and 68,438.22

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Solution

The fourth proportional to 102,440.60, 141,315.33 and 68,438.22 is: 94,409.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,440.60 : 141,315.33 = 68,438.22 : x
  2. Step 2: Convert to fraction form
    102,440.60/141,315.33 = 68,438.22/x
  3. Step 3: Cross multiply
    102,440.60x = 141,315.33 × 68,438.22
  4. Step 4: Simplify right side
    102,440.60x = 9,671,369,370.62
  5. Step 5: Solve for x
    x = 9,671,369,370.62/102,440.60
  6. Step 6: Final answer
    x = 94,409.54

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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.