Home / 145,569.46-200,889.78-81,909.52

Finding the Fourth Proportional to 145,569.46, 200,889.78 and 81,909.52

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Solution

The fourth proportional to 145,569.46, 200,889.78 and 81,909.52 is: 113,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,569.46 : 200,889.78 = 81,909.52 : x
  2. Step 2: Convert to fraction form
    145,569.46/200,889.78 = 81,909.52/x
  3. Step 3: Cross multiply
    145,569.46x = 200,889.78 × 81,909.52
  4. Step 4: Simplify right side
    145,569.46x = 16,454,785,452.71
  5. Step 5: Solve for x
    x = 16,454,785,452.71/145,569.46
  6. Step 6: Final answer
    x = 113,037.35

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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.