Home / 153,438.87-230,256.62-74,510.04

Finding the Fourth Proportional to 153,438.87, 230,256.62 and 74,510.04

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Solution

The fourth proportional to 153,438.87, 230,256.62 and 74,510.04 is: 111,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,438.87 : 230,256.62 = 74,510.04 : x
  2. Step 2: Convert to fraction form
    153,438.87/230,256.62 = 74,510.04/x
  3. Step 3: Cross multiply
    153,438.87x = 230,256.62 × 74,510.04
  4. Step 4: Simplify right side
    153,438.87x = 17,156,431,155.91
  5. Step 5: Solve for x
    x = 17,156,431,155.91/153,438.87
  6. Step 6: Final answer
    x = 111,812.81

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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.