Home / 105,988.74-158,984.01-31,110.12

Finding the Fourth Proportional to 105,988.74, 158,984.01 and 31,110.12

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Solution

The fourth proportional to 105,988.74, 158,984.01 and 31,110.12 is: 46,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988.74 : 158,984.01 = 31,110.12 : x
  2. Step 2: Convert to fraction form
    105,988.74/158,984.01 = 31,110.12/x
  3. Step 3: Cross multiply
    105,988.74x = 158,984.01 × 31,110.12
  4. Step 4: Simplify right side
    105,988.74x = 4,946,011,629.18
  5. Step 5: Solve for x
    x = 4,946,011,629.18/105,988.74
  6. Step 6: Final answer
    x = 46,665.44

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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.