Home / 111,515.04-153,889.20-69,084

Finding the Fourth Proportional to 111,515.04, 153,889.20 and 69,084

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Solution

The fourth proportional to 111,515.04, 153,889.20 and 69,084 is: 95,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,515.04 : 153,889.20 = 69,084 : x
  2. Step 2: Convert to fraction form
    111,515.04/153,889.20 = 69,084/x
  3. Step 3: Cross multiply
    111,515.04x = 153,889.20 × 69,084
  4. Step 4: Simplify right side
    111,515.04x = 10,631,281,492.80
  5. Step 5: Solve for x
    x = 10,631,281,492.80/111,515.04
  6. Step 6: Final answer
    x = 95,334.96

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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.