Home / 103,002.55-154,443.68-43,807.75

Finding the Fourth Proportional to 103,002.55, 154,443.68 and 43,807.75

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Solution

The fourth proportional to 103,002.55, 154,443.68 and 43,807.75 is: 65,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,002.55 : 154,443.68 = 43,807.75 : x
  2. Step 2: Convert to fraction form
    103,002.55/154,443.68 = 43,807.75/x
  3. Step 3: Cross multiply
    103,002.55x = 154,443.68 × 43,807.75
  4. Step 4: Simplify right side
    103,002.55x = 6,765,829,903.48
  5. Step 5: Solve for x
    x = 6,765,829,903.48/103,002.55
  6. Step 6: Final answer
    x = 65,686.04

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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.