Home / 236,673.28-355,013.12-78,901.76

Finding the Fourth Proportional to 236,673.28, 355,013.12 and 78,901.76

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Solution

The fourth proportional to 236,673.28, 355,013.12 and 78,901.76 is: 118,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,673.28 : 355,013.12 = 78,901.76 : x
  2. Step 2: Convert to fraction form
    236,673.28/355,013.12 = 78,901.76/x
  3. Step 3: Cross multiply
    236,673.28x = 355,013.12 × 78,901.76
  4. Step 4: Simplify right side
    236,673.28x = 28,011,159,991.09
  5. Step 5: Solve for x
    x = 28,011,159,991.09/236,673.28
  6. Step 6: Final answer
    x = 118,353.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.