Home / 142,067.78-213,045.98-53,272.88

Finding the Fourth Proportional to 142,067.78, 213,045.98 and 53,272.88

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Solution

The fourth proportional to 142,067.78, 213,045.98 and 53,272.88 is: 79,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,067.78 : 213,045.98 = 53,272.88 : x
  2. Step 2: Convert to fraction form
    142,067.78/213,045.98 = 53,272.88/x
  3. Step 3: Cross multiply
    142,067.78x = 213,045.98 × 53,272.88
  4. Step 4: Simplify right side
    142,067.78x = 11,349,572,927.02
  5. Step 5: Solve for x
    x = 11,349,572,927.02/142,067.78
  6. Step 6: Final answer
    x = 79,888.44

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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.