Home / 134,139.40-201,209.10-112,488.10

Finding the Fourth Proportional to 134,139.40, 201,209.10 and 112,488.10

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Solution

The fourth proportional to 134,139.40, 201,209.10 and 112,488.10 is: 168,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,139.40 : 201,209.10 = 112,488.10 : x
  2. Step 2: Convert to fraction form
    134,139.40/201,209.10 = 112,488.10/x
  3. Step 3: Cross multiply
    134,139.40x = 201,209.10 × 112,488.10
  4. Step 4: Simplify right side
    134,139.40x = 22,633,629,361.71
  5. Step 5: Solve for x
    x = 22,633,629,361.71/134,139.40
  6. Step 6: Final answer
    x = 168,732.15

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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.