Home / 123,502.20-185,339.70-53,431.80

Finding the Fourth Proportional to 123,502.20, 185,339.70 and 53,431.80

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Solution

The fourth proportional to 123,502.20, 185,339.70 and 53,431.80 is: 80,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.20 : 185,339.70 = 53,431.80 : x
  2. Step 2: Convert to fraction form
    123,502.20/185,339.70 = 53,431.80/x
  3. Step 3: Cross multiply
    123,502.20x = 185,339.70 × 53,431.80
  4. Step 4: Simplify right side
    123,502.20x = 9,903,033,782.46
  5. Step 5: Solve for x
    x = 9,903,033,782.46/123,502.20
  6. Step 6: Final answer
    x = 80,185.08

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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.