Home / 113,624.46-157,085.20-85,280.94

Finding the Fourth Proportional to 113,624.46, 157,085.20 and 85,280.94

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Solution

The fourth proportional to 113,624.46, 157,085.20 and 85,280.94 is: 117,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,624.46 : 157,085.20 = 85,280.94 : x
  2. Step 2: Convert to fraction form
    113,624.46/157,085.20 = 85,280.94/x
  3. Step 3: Cross multiply
    113,624.46x = 157,085.20 × 85,280.94
  4. Step 4: Simplify right side
    113,624.46x = 13,396,373,089.68
  5. Step 5: Solve for x
    x = 13,396,373,089.68/113,624.46
  6. Step 6: Final answer
    x = 117,900.43

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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.