Home / 113,624.21-157,084.85-85,280.69

Finding the Fourth Proportional to 113,624.21, 157,084.85 and 85,280.69

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Solution

The fourth proportional to 113,624.21, 157,084.85 and 85,280.69 is: 117,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,624.21 : 157,084.85 = 85,280.69 : x
  2. Step 2: Convert to fraction form
    113,624.21/157,084.85 = 85,280.69/x
  3. Step 3: Cross multiply
    113,624.21x = 157,084.85 × 85,280.69
  4. Step 4: Simplify right side
    113,624.21x = 13,396,304,396.55
  5. Step 5: Solve for x
    x = 13,396,304,396.55/113,624.21
  6. Step 6: Final answer
    x = 117,900.09

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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.