Home / 110,357.24-152,325.12-72,122.36

Finding the Fourth Proportional to 110,357.24, 152,325.12 and 72,122.36

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Solution

The fourth proportional to 110,357.24, 152,325.12 and 72,122.36 is: 99,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,357.24 : 152,325.12 = 72,122.36 : x
  2. Step 2: Convert to fraction form
    110,357.24/152,325.12 = 72,122.36/x
  3. Step 3: Cross multiply
    110,357.24x = 152,325.12 × 72,122.36
  4. Step 4: Simplify right side
    110,357.24x = 10,986,047,141.68
  5. Step 5: Solve for x
    x = 10,986,047,141.68/110,357.24
  6. Step 6: Final answer
    x = 99,549.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.