Home / 103,387.07-142,681.73-58,067.74

Finding the Fourth Proportional to 103,387.07, 142,681.73 and 58,067.74

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Solution

The fourth proportional to 103,387.07, 142,681.73 and 58,067.74 is: 80,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,387.07 : 142,681.73 = 58,067.74 : x
  2. Step 2: Convert to fraction form
    103,387.07/142,681.73 = 58,067.74/x
  3. Step 3: Cross multiply
    103,387.07x = 142,681.73 × 58,067.74
  4. Step 4: Simplify right side
    103,387.07x = 8,285,205,600.39
  5. Step 5: Solve for x
    x = 8,285,205,600.39/103,387.07
  6. Step 6: Final answer
    x = 80,137.73

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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.