Home / 122,363.61-183,538.02-72,759.38

Finding the Fourth Proportional to 122,363.61, 183,538.02 and 72,759.38

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Solution

The fourth proportional to 122,363.61, 183,538.02 and 72,759.38 is: 109,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,363.61 : 183,538.02 = 72,759.38 : x
  2. Step 2: Convert to fraction form
    122,363.61/183,538.02 = 72,759.38/x
  3. Step 3: Cross multiply
    122,363.61x = 183,538.02 × 72,759.38
  4. Step 4: Simplify right side
    122,363.61x = 13,354,112,519.92
  5. Step 5: Solve for x
    x = 13,354,112,519.92/122,363.61
  6. Step 6: Final answer
    x = 109,134.67

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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.