Home / 94,043.36-140,901.01-78,349.21

Finding the Fourth Proportional to 94,043.36, 140,901.01 and 78,349.21

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Solution

The fourth proportional to 94,043.36, 140,901.01 and 78,349.21 is: 117,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,043.36 : 140,901.01 = 78,349.21 : x
  2. Step 2: Convert to fraction form
    94,043.36/140,901.01 = 78,349.21/x
  3. Step 3: Cross multiply
    94,043.36x = 140,901.01 × 78,349.21
  4. Step 4: Simplify right side
    94,043.36x = 11,039,482,567.39
  5. Step 5: Solve for x
    x = 11,039,482,567.39/94,043.36
  6. Step 6: Final answer
    x = 117,387.15

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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.