Home / 103,622.30-155,433.45-101,318.30

Finding the Fourth Proportional to 103,622.30, 155,433.45 and 101,318.30

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Solution

The fourth proportional to 103,622.30, 155,433.45 and 101,318.30 is: 151,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.30 : 155,433.45 = 101,318.30 : x
  2. Step 2: Convert to fraction form
    103,622.30/155,433.45 = 101,318.30/x
  3. Step 3: Cross multiply
    103,622.30x = 155,433.45 × 101,318.30
  4. Step 4: Simplify right side
    103,622.30x = 15,748,252,917.14
  5. Step 5: Solve for x
    x = 15,748,252,917.14/103,622.30
  6. Step 6: Final answer
    x = 151,977.45

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1.5x scale

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.