Home / 219,726.96-303,225.54-129,086.70

Finding the Fourth Proportional to 219,726.96, 303,225.54 and 129,086.70

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Solution

The fourth proportional to 219,726.96, 303,225.54 and 129,086.70 is: 178,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,726.96 : 303,225.54 = 129,086.70 : x
  2. Step 2: Convert to fraction form
    219,726.96/303,225.54 = 129,086.70/x
  3. Step 3: Cross multiply
    219,726.96x = 303,225.54 × 129,086.70
  4. Step 4: Simplify right side
    219,726.96x = 39,142,384,314.32
  5. Step 5: Solve for x
    x = 39,142,384,314.32/219,726.96
  6. Step 6: Final answer
    x = 178,141.02

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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.