Home / 113,014.86-155,981.99-74,775.18

Finding the Fourth Proportional to 113,014.86, 155,981.99 and 74,775.18

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Solution

The fourth proportional to 113,014.86, 155,981.99 and 74,775.18 is: 103,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,014.86 : 155,981.99 = 74,775.18 : x
  2. Step 2: Convert to fraction form
    113,014.86/155,981.99 = 74,775.18/x
  3. Step 3: Cross multiply
    113,014.86x = 155,981.99 × 74,775.18
  4. Step 4: Simplify right side
    113,014.86x = 11,663,581,379.01
  5. Step 5: Solve for x
    x = 11,663,581,379.01/113,014.86
  6. Step 6: Final answer
    x = 103,203.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.