Home / 103,616.40-155,417.58-40,424.88

Finding the Fourth Proportional to 103,616.40, 155,417.58 and 40,424.88

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Solution

The fourth proportional to 103,616.40, 155,417.58 and 40,424.88 is: 60,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616.40 : 155,417.58 = 40,424.88 : x
  2. Step 2: Convert to fraction form
    103,616.40/155,417.58 = 40,424.88/x
  3. Step 3: Cross multiply
    103,616.40x = 155,417.58 × 40,424.88
  4. Step 4: Simplify right side
    103,616.40x = 6,282,737,021.39
  5. Step 5: Solve for x
    x = 6,282,737,021.39/103,616.40
  6. Step 6: Final answer
    x = 60,634.58

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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.