Home / 148,749.25-205,253.31-87,498.22

Finding the Fourth Proportional to 148,749.25, 205,253.31 and 87,498.22

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Solution

The fourth proportional to 148,749.25, 205,253.31 and 87,498.22 is: 120,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,749.25 : 205,253.31 = 87,498.22 : x
  2. Step 2: Convert to fraction form
    148,749.25/205,253.31 = 87,498.22/x
  3. Step 3: Cross multiply
    148,749.25x = 205,253.31 × 87,498.22
  4. Step 4: Simplify right side
    148,749.25x = 17,959,299,274.11
  5. Step 5: Solve for x
    x = 17,959,299,274.11/148,749.25
  6. Step 6: Final answer
    x = 120,735.39

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1.5x scale

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.