Home / 103,421.90-155,046.71-40,227.17

Finding the Fourth Proportional to 103,421.90, 155,046.71 and 40,227.17

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Solution

The fourth proportional to 103,421.90, 155,046.71 and 40,227.17 is: 60,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,421.90 : 155,046.71 = 40,227.17 : x
  2. Step 2: Convert to fraction form
    103,421.90/155,046.71 = 40,227.17/x
  3. Step 3: Cross multiply
    103,421.90x = 155,046.71 × 40,227.17
  4. Step 4: Simplify right side
    103,421.90x = 6,237,089,384.74
  5. Step 5: Solve for x
    x = 6,237,089,384.74/103,421.90
  6. Step 6: Final answer
    x = 60,307.24

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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.