Home / 94,148.40-140,889.24-69,129.12

Finding the Fourth Proportional to 94,148.40, 140,889.24 and 69,129.12

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Solution

The fourth proportional to 94,148.40, 140,889.24 and 69,129.12 is: 103,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,148.40 : 140,889.24 = 69,129.12 : x
  2. Step 2: Convert to fraction form
    94,148.40/140,889.24 = 69,129.12/x
  3. Step 3: Cross multiply
    94,148.40x = 140,889.24 × 69,129.12
  4. Step 4: Simplify right side
    94,148.40x = 9,739,549,178.67
  5. Step 5: Solve for x
    x = 9,739,549,178.67/94,148.40
  6. Step 6: Final answer
    x = 103,448.91

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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.