Home / 149,427.47-206,207.06-81,444.87

Finding the Fourth Proportional to 149,427.47, 206,207.06 and 81,444.87

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Solution

The fourth proportional to 149,427.47, 206,207.06 and 81,444.87 is: 112,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,427.47 : 206,207.06 = 81,444.87 : x
  2. Step 2: Convert to fraction form
    149,427.47/206,207.06 = 81,444.87/x
  3. Step 3: Cross multiply
    149,427.47x = 206,207.06 × 81,444.87
  4. Step 4: Simplify right side
    149,427.47x = 16,794,506,787.56
  5. Step 5: Solve for x
    x = 16,794,506,787.56/149,427.47
  6. Step 6: Final answer
    x = 112,392.37

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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.