Home / 105,144.39-157,716.59-31,272.39

Finding the Fourth Proportional to 105,144.39, 157,716.59 and 31,272.39

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Solution

The fourth proportional to 105,144.39, 157,716.59 and 31,272.39 is: 46,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,144.39 : 157,716.59 = 31,272.39 : x
  2. Step 2: Convert to fraction form
    105,144.39/157,716.59 = 31,272.39/x
  3. Step 3: Cross multiply
    105,144.39x = 157,716.59 × 31,272.39
  4. Step 4: Simplify right side
    105,144.39x = 4,932,174,555.59
  5. Step 5: Solve for x
    x = 4,932,174,555.59/105,144.39
  6. Step 6: Final answer
    x = 46,908.59

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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.