Home / 149,703.50-206,229.02-128,123.96

Finding the Fourth Proportional to 149,703.50, 206,229.02 and 128,123.96

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Solution

The fourth proportional to 149,703.50, 206,229.02 and 128,123.96 is: 176,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,703.50 : 206,229.02 = 128,123.96 : x
  2. Step 2: Convert to fraction form
    149,703.50/206,229.02 = 128,123.96/x
  3. Step 3: Cross multiply
    149,703.50x = 206,229.02 × 128,123.96
  4. Step 4: Simplify right side
    149,703.50x = 26,422,878,709.32
  5. Step 5: Solve for x
    x = 26,422,878,709.32/149,703.50
  6. Step 6: Final answer
    x = 176,501.41

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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.