Home / 75,386.88-113,122.80-69,438.24

Finding the Fourth Proportional to 75,386.88, 113,122.80 and 69,438.24

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Solution

The fourth proportional to 75,386.88, 113,122.80 and 69,438.24 is: 104,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,386.88 : 113,122.80 = 69,438.24 : x
  2. Step 2: Convert to fraction form
    75,386.88/113,122.80 = 69,438.24/x
  3. Step 3: Cross multiply
    75,386.88x = 113,122.80 × 69,438.24
  4. Step 4: Simplify right side
    75,386.88x = 7,855,048,135.87
  5. Step 5: Solve for x
    x = 7,855,048,135.87/75,386.88
  6. Step 6: Final answer
    x = 104,196.49

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1.5x scale

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.