Home / 154,642.28-213,411.59-147,556.40

Finding the Fourth Proportional to 154,642.28, 213,411.59 and 147,556.40

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Solution

The fourth proportional to 154,642.28, 213,411.59 and 147,556.40 is: 203,632.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,642.28 : 213,411.59 = 147,556.40 : x
  2. Step 2: Convert to fraction form
    154,642.28/213,411.59 = 147,556.40/x
  3. Step 3: Cross multiply
    154,642.28x = 213,411.59 × 147,556.40
  4. Step 4: Simplify right side
    154,642.28x = 31,490,244,133.84
  5. Step 5: Solve for x
    x = 31,490,244,133.84/154,642.28
  6. Step 6: Final answer
    x = 203,632.83

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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.