Home / 249,919.32-374,878.68-81,439.38

Finding the Fourth Proportional to 249,919.32, 374,878.68 and 81,439.38

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Solution

The fourth proportional to 249,919.32, 374,878.68 and 81,439.38 is: 122,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,919.32 : 374,878.68 = 81,439.38 : x
  2. Step 2: Convert to fraction form
    249,919.32/374,878.68 = 81,439.38/x
  3. Step 3: Cross multiply
    249,919.32x = 374,878.68 × 81,439.38
  4. Step 4: Simplify right side
    249,919.32x = 30,529,887,274.42
  5. Step 5: Solve for x
    x = 30,529,887,274.42/249,919.32
  6. Step 6: Final answer
    x = 122,158.97

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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.