Home / 125,216.68-187,825.02-75,865

Finding the Fourth Proportional to 125,216.68, 187,825.02 and 75,865

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Solution

The fourth proportional to 125,216.68, 187,825.02 and 75,865 is: 113,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.68 : 187,825.02 = 75,865 : x
  2. Step 2: Convert to fraction form
    125,216.68/187,825.02 = 75,865/x
  3. Step 3: Cross multiply
    125,216.68x = 187,825.02 × 75,865
  4. Step 4: Simplify right side
    125,216.68x = 14,249,345,142.30
  5. Step 5: Solve for x
    x = 14,249,345,142.30/125,216.68
  6. Step 6: Final answer
    x = 113,797.50

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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.