Home / 113,040-155,995.20-62,739.36

Finding the Fourth Proportional to 113,040, 155,995.20 and 62,739.36

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Solution

The fourth proportional to 113,040, 155,995.20 and 62,739.36 is: 86,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,040 : 155,995.20 = 62,739.36 : x
  2. Step 2: Convert to fraction form
    113,040/155,995.20 = 62,739.36/x
  3. Step 3: Cross multiply
    113,040x = 155,995.20 × 62,739.36
  4. Step 4: Simplify right side
    113,040x = 9,787,039,011.07
  5. Step 5: Solve for x
    x = 9,787,039,011.07/113,040
  6. Step 6: Final answer
    x = 86,580.32

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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.