Home / 145,801.98-201,206.75-82,139.76

Finding the Fourth Proportional to 145,801.98, 201,206.75 and 82,139.76

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Solution

The fourth proportional to 145,801.98, 201,206.75 and 82,139.76 is: 113,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,801.98 : 201,206.75 = 82,139.76 : x
  2. Step 2: Convert to fraction form
    145,801.98/201,206.75 = 82,139.76/x
  3. Step 3: Cross multiply
    145,801.98x = 201,206.75 × 82,139.76
  4. Step 4: Simplify right side
    145,801.98x = 16,527,073,744.68
  5. Step 5: Solve for x
    x = 16,527,073,744.68/145,801.98
  6. Step 6: Final answer
    x = 113,352.88

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1.5x scale

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.