Home / 128,335.35-192,535.83-49,428.39

Finding the Fourth Proportional to 128,335.35, 192,535.83 and 49,428.39

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Solution

The fourth proportional to 128,335.35, 192,535.83 and 49,428.39 is: 74,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335.35 : 192,535.83 = 49,428.39 : x
  2. Step 2: Convert to fraction form
    128,335.35/192,535.83 = 49,428.39/x
  3. Step 3: Cross multiply
    128,335.35x = 192,535.83 × 49,428.39
  4. Step 4: Simplify right side
    128,335.35x = 9,516,736,094.21
  5. Step 5: Solve for x
    x = 9,516,736,094.21/128,335.35
  6. Step 6: Final answer
    x = 74,155.22

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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.