Home / 94,437.80-142,002.30-79,231.40

Finding the Fourth Proportional to 94,437.80, 142,002.30 and 79,231.40

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Solution

The fourth proportional to 94,437.80, 142,002.30 and 79,231.40 is: 119,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,437.80 : 142,002.30 = 79,231.40 : x
  2. Step 2: Convert to fraction form
    94,437.80/142,002.30 = 79,231.40/x
  3. Step 3: Cross multiply
    94,437.80x = 142,002.30 × 79,231.40
  4. Step 4: Simplify right side
    94,437.80x = 11,251,041,032.22
  5. Step 5: Solve for x
    x = 11,251,041,032.22/94,437.80
  6. Step 6: Final answer
    x = 119,137.05

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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.