Home / 281,158.24-421,715.76-103,632.16

Finding the Fourth Proportional to 281,158.24, 421,715.76 and 103,632.16

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Solution

The fourth proportional to 281,158.24, 421,715.76 and 103,632.16 is: 155,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,158.24 : 421,715.76 = 103,632.16 : x
  2. Step 2: Convert to fraction form
    281,158.24/421,715.76 = 103,632.16/x
  3. Step 3: Cross multiply
    281,158.24x = 421,715.76 × 103,632.16
  4. Step 4: Simplify right side
    281,158.24x = 43,703,315,114.84
  5. Step 5: Solve for x
    x = 43,703,315,114.84/281,158.24
  6. Step 6: Final answer
    x = 155,440.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.