Home / 122,637.81-183,979.53-42,672.45

Finding the Fourth Proportional to 122,637.81, 183,979.53 and 42,672.45

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Solution

The fourth proportional to 122,637.81, 183,979.53 and 42,672.45 is: 64,016.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,637.81 : 183,979.53 = 42,672.45 : x
  2. Step 2: Convert to fraction form
    122,637.81/183,979.53 = 42,672.45/x
  3. Step 3: Cross multiply
    122,637.81x = 183,979.53 × 42,672.45
  4. Step 4: Simplify right side
    122,637.81x = 7,850,857,294.95
  5. Step 5: Solve for x
    x = 7,850,857,294.95/122,637.81
  6. Step 6: Final answer
    x = 64,016.61

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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.