Home / 123,940.15-171,036.99-70,235.39

Finding the Fourth Proportional to 123,940.15, 171,036.99 and 70,235.39

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Solution

The fourth proportional to 123,940.15, 171,036.99 and 70,235.39 is: 96,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.15 : 171,036.99 = 70,235.39 : x
  2. Step 2: Convert to fraction form
    123,940.15/171,036.99 = 70,235.39/x
  3. Step 3: Cross multiply
    123,940.15x = 171,036.99 × 70,235.39
  4. Step 4: Simplify right side
    123,940.15x = 12,012,850,124.67
  5. Step 5: Solve for x
    x = 12,012,850,124.67/123,940.15
  6. Step 6: Final answer
    x = 96,924.61

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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.