Home / 103,424.41-155,011.20-47,187.46

Finding the Fourth Proportional to 103,424.41, 155,011.20 and 47,187.46

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Solution

The fourth proportional to 103,424.41, 155,011.20 and 47,187.46 is: 70,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424.41 : 155,011.20 = 47,187.46 : x
  2. Step 2: Convert to fraction form
    103,424.41/155,011.20 = 47,187.46/x
  3. Step 3: Cross multiply
    103,424.41x = 155,011.20 × 47,187.46
  4. Step 4: Simplify right side
    103,424.41x = 7,314,584,799.55
  5. Step 5: Solve for x
    x = 7,314,584,799.55/103,424.41
  6. Step 6: Final answer
    x = 70,723.97

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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.