Home / 149,947.52-206,927.55-81,964.76

Finding the Fourth Proportional to 149,947.52, 206,927.55 and 81,964.76

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Solution

The fourth proportional to 149,947.52, 206,927.55 and 81,964.76 is: 113,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,947.52 : 206,927.55 = 81,964.76 : x
  2. Step 2: Convert to fraction form
    149,947.52/206,927.55 = 81,964.76/x
  3. Step 3: Cross multiply
    149,947.52x = 206,927.55 × 81,964.76
  4. Step 4: Simplify right side
    149,947.52x = 16,960,767,490.46
  5. Step 5: Solve for x
    x = 16,960,767,490.46/149,947.52
  6. Step 6: Final answer
    x = 113,111.36

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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.