Home / 100,332.37-138,431.11-62,073.54

Finding the Fourth Proportional to 100,332.37, 138,431.11 and 62,073.54

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Solution

The fourth proportional to 100,332.37, 138,431.11 and 62,073.54 is: 85,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,332.37 : 138,431.11 = 62,073.54 : x
  2. Step 2: Convert to fraction form
    100,332.37/138,431.11 = 62,073.54/x
  3. Step 3: Cross multiply
    100,332.37x = 138,431.11 × 62,073.54
  4. Step 4: Simplify right side
    100,332.37x = 8,592,908,041.31
  5. Step 5: Solve for x
    x = 8,592,908,041.31/100,332.37
  6. Step 6: Final answer
    x = 85,644.43

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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.