Home / 138,551.55-191,201.04-74,889.35

Finding the Fourth Proportional to 138,551.55, 191,201.04 and 74,889.35

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Solution

The fourth proportional to 138,551.55, 191,201.04 and 74,889.35 is: 103,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,551.55 : 191,201.04 = 74,889.35 : x
  2. Step 2: Convert to fraction form
    138,551.55/191,201.04 = 74,889.35/x
  3. Step 3: Cross multiply
    138,551.55x = 191,201.04 × 74,889.35
  4. Step 4: Simplify right side
    138,551.55x = 14,318,921,230.48
  5. Step 5: Solve for x
    x = 14,318,921,230.48/138,551.55
  6. Step 6: Final answer
    x = 103,347.24

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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.