Home / 103,494.42-155,350.20-91,723.50

Finding the Fourth Proportional to 103,494.42, 155,350.20 and 91,723.50

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Solution

The fourth proportional to 103,494.42, 155,350.20 and 91,723.50 is: 137,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,494.42 : 155,350.20 = 91,723.50 : x
  2. Step 2: Convert to fraction form
    103,494.42/155,350.20 = 91,723.50/x
  3. Step 3: Cross multiply
    103,494.42x = 155,350.20 × 91,723.50
  4. Step 4: Simplify right side
    103,494.42x = 14,249,264,069.70
  5. Step 5: Solve for x
    x = 14,249,264,069.70/103,494.42
  6. Step 6: Final answer
    x = 137,681.47

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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.