Home / 149,335.76-206,089.80-84,803.69

Finding the Fourth Proportional to 149,335.76, 206,089.80 and 84,803.69

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Solution

The fourth proportional to 149,335.76, 206,089.80 and 84,803.69 is: 117,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,335.76 : 206,089.80 = 84,803.69 : x
  2. Step 2: Convert to fraction form
    149,335.76/206,089.80 = 84,803.69/x
  3. Step 3: Cross multiply
    149,335.76x = 206,089.80 × 84,803.69
  4. Step 4: Simplify right side
    149,335.76x = 17,477,175,511.36
  5. Step 5: Solve for x
    x = 17,477,175,511.36/149,335.76
  6. Step 6: Final answer
    x = 117,032.76

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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.