Home / 145,628.10-200,966.34-81,965.92

Finding the Fourth Proportional to 145,628.10, 200,966.34 and 81,965.92

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Solution

The fourth proportional to 145,628.10, 200,966.34 and 81,965.92 is: 113,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,628.10 : 200,966.34 = 81,965.92 : x
  2. Step 2: Convert to fraction form
    145,628.10/200,966.34 = 81,965.92/x
  3. Step 3: Cross multiply
    145,628.10x = 200,966.34 × 81,965.92
  4. Step 4: Simplify right side
    145,628.10x = 16,472,390,947.13
  5. Step 5: Solve for x
    x = 16,472,390,947.13/145,628.10
  6. Step 6: Final answer
    x = 113,112.72

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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.