Home / 122,387.56-183,539.75-42,406.86

Finding the Fourth Proportional to 122,387.56, 183,539.75 and 42,406.86

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Solution

The fourth proportional to 122,387.56, 183,539.75 and 42,406.86 is: 63,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,387.56 : 183,539.75 = 42,406.86 : x
  2. Step 2: Convert to fraction form
    122,387.56/183,539.75 = 42,406.86/x
  3. Step 3: Cross multiply
    122,387.56x = 183,539.75 × 42,406.86
  4. Step 4: Simplify right side
    122,387.56x = 7,783,344,482.69
  5. Step 5: Solve for x
    x = 7,783,344,482.69/122,387.56
  6. Step 6: Final answer
    x = 63,595.88

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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.