Home / 142,678.07-213,833.88-53,825.70

Finding the Fourth Proportional to 142,678.07, 213,833.88 and 53,825.70

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Solution

The fourth proportional to 142,678.07, 213,833.88 and 53,825.70 is: 80,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,678.07 : 213,833.88 = 53,825.70 : x
  2. Step 2: Convert to fraction form
    142,678.07/213,833.88 = 53,825.70/x
  3. Step 3: Cross multiply
    142,678.07x = 213,833.88 × 53,825.70
  4. Step 4: Simplify right side
    142,678.07x = 11,509,758,274.72
  5. Step 5: Solve for x
    x = 11,509,758,274.72/142,678.07
  6. Step 6: Final answer
    x = 80,669.43

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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.