Home / 98,681.36-148,040.30-31,230.37

Finding the Fourth Proportional to 98,681.36, 148,040.30 and 31,230.37

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Solution

The fourth proportional to 98,681.36, 148,040.30 and 31,230.37 is: 46,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,681.36 : 148,040.30 = 31,230.37 : x
  2. Step 2: Convert to fraction form
    98,681.36/148,040.30 = 31,230.37/x
  3. Step 3: Cross multiply
    98,681.36x = 148,040.30 × 31,230.37
  4. Step 4: Simplify right side
    98,681.36x = 4,623,353,343.91
  5. Step 5: Solve for x
    x = 4,623,353,343.91/98,681.36
  6. Step 6: Final answer
    x = 46,851.33

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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.