Home / 148,749.75-205,254-87,498.72

Finding the Fourth Proportional to 148,749.75, 205,254 and 87,498.72

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Solution

The fourth proportional to 148,749.75, 205,254 and 87,498.72 is: 120,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,749.75 : 205,254 = 87,498.72 : x
  2. Step 2: Convert to fraction form
    148,749.75/205,254 = 87,498.72/x
  3. Step 3: Cross multiply
    148,749.75x = 205,254 × 87,498.72
  4. Step 4: Simplify right side
    148,749.75x = 17,959,462,274.88
  5. Step 5: Solve for x
    x = 17,959,462,274.88/148,749.75
  6. Step 6: Final answer
    x = 120,736.08

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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.