Home / 103,690.20-155,243.70-93,192.60

Finding the Fourth Proportional to 103,690.20, 155,243.70 and 93,192.60

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Solution

The fourth proportional to 103,690.20, 155,243.70 and 93,192.60 is: 139,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.20 : 155,243.70 = 93,192.60 : x
  2. Step 2: Convert to fraction form
    103,690.20/155,243.70 = 93,192.60/x
  3. Step 3: Cross multiply
    103,690.20x = 155,243.70 × 93,192.60
  4. Step 4: Simplify right side
    103,690.20x = 14,467,564,036.62
  5. Step 5: Solve for x
    x = 14,467,564,036.62/103,690.20
  6. Step 6: Final answer
    x = 139,526.82

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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.