Home / 98,938.19-148,405.70-31,469.25

Finding the Fourth Proportional to 98,938.19, 148,405.70 and 31,469.25

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Solution

The fourth proportional to 98,938.19, 148,405.70 and 31,469.25 is: 47,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,938.19 : 148,405.70 = 31,469.25 : x
  2. Step 2: Convert to fraction form
    98,938.19/148,405.70 = 31,469.25/x
  3. Step 3: Cross multiply
    98,938.19x = 148,405.70 × 31,469.25
  4. Step 4: Simplify right side
    98,938.19x = 4,670,215,917.38
  5. Step 5: Solve for x
    x = 4,670,215,917.38/98,938.19
  6. Step 6: Final answer
    x = 47,203.37

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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.