Home / 100,148.60-150,242.34-30,022.04

Finding the Fourth Proportional to 100,148.60, 150,242.34 and 30,022.04

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Solution

The fourth proportional to 100,148.60, 150,242.34 and 30,022.04 is: 45,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,148.60 : 150,242.34 = 30,022.04 : x
  2. Step 2: Convert to fraction form
    100,148.60/150,242.34 = 30,022.04/x
  3. Step 3: Cross multiply
    100,148.60x = 150,242.34 × 30,022.04
  4. Step 4: Simplify right side
    100,148.60x = 4,510,581,541.17
  5. Step 5: Solve for x
    x = 4,510,581,541.17/100,148.60
  6. Step 6: Final answer
    x = 45,038.89

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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.