Home / 103,537.70-155,306.55-99,455.30

Finding the Fourth Proportional to 103,537.70, 155,306.55 and 99,455.30

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Solution

The fourth proportional to 103,537.70, 155,306.55 and 99,455.30 is: 149,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,537.70 : 155,306.55 = 99,455.30 : x
  2. Step 2: Convert to fraction form
    103,537.70/155,306.55 = 99,455.30/x
  3. Step 3: Cross multiply
    103,537.70x = 155,306.55 × 99,455.30
  4. Step 4: Simplify right side
    103,537.70x = 15,446,059,522.22
  5. Step 5: Solve for x
    x = 15,446,059,522.22/103,537.70
  6. Step 6: Final answer
    x = 149,182.95

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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.