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Finding the Fourth Proportional to 134,728.60, 201,801.30 and 72,326.20

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Solution

The fourth proportional to 134,728.60, 201,801.30 and 72,326.20 is: 108,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,728.60 : 201,801.30 = 72,326.20 : x
  2. Step 2: Convert to fraction form
    134,728.60/201,801.30 = 72,326.20/x
  3. Step 3: Cross multiply
    134,728.60x = 201,801.30 × 72,326.20
  4. Step 4: Simplify right side
    134,728.60x = 14,595,521,184.06
  5. Step 5: Solve for x
    x = 14,595,521,184.06/134,728.60
  6. Step 6: Final answer
    x = 108,332.76

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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.