Home / 105,996.65-158,995.07-39,428.15

Finding the Fourth Proportional to 105,996.65, 158,995.07 and 39,428.15

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Solution

The fourth proportional to 105,996.65, 158,995.07 and 39,428.15 is: 59,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,996.65 : 158,995.07 = 39,428.15 : x
  2. Step 2: Convert to fraction form
    105,996.65/158,995.07 = 39,428.15/x
  3. Step 3: Cross multiply
    105,996.65x = 158,995.07 × 39,428.15
  4. Step 4: Simplify right side
    105,996.65x = 6,268,881,272.08
  5. Step 5: Solve for x
    x = 6,268,881,272.08/105,996.65
  6. Step 6: Final answer
    x = 59,142.26

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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.