Home / 134,326.80-201,490.20-128,421.90

Finding the Fourth Proportional to 134,326.80, 201,490.20 and 128,421.90

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Solution

The fourth proportional to 134,326.80, 201,490.20 and 128,421.90 is: 192,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,326.80 : 201,490.20 = 128,421.90 : x
  2. Step 2: Convert to fraction form
    134,326.80/201,490.20 = 128,421.90/x
  3. Step 3: Cross multiply
    134,326.80x = 201,490.20 × 128,421.90
  4. Step 4: Simplify right side
    134,326.80x = 25,875,754,315.38
  5. Step 5: Solve for x
    x = 25,875,754,315.38/134,326.80
  6. Step 6: Final answer
    x = 192,632.85

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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.