Home / 138,596.02-191,292.18-87,576.36

Finding the Fourth Proportional to 138,596.02, 191,292.18 and 87,576.36

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Solution

The fourth proportional to 138,596.02, 191,292.18 and 87,576.36 is: 120,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,596.02 : 191,292.18 = 87,576.36 : x
  2. Step 2: Convert to fraction form
    138,596.02/191,292.18 = 87,576.36/x
  3. Step 3: Cross multiply
    138,596.02x = 191,292.18 × 87,576.36
  4. Step 4: Simplify right side
    138,596.02x = 16,752,672,820.86
  5. Step 5: Solve for x
    x = 16,752,672,820.86/138,596.02
  6. Step 6: Final answer
    x = 120,874.13

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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.