Home / 128,628.04-192,947.18-35,133.52

Finding the Fourth Proportional to 128,628.04, 192,947.18 and 35,133.52

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Solution

The fourth proportional to 128,628.04, 192,947.18 and 35,133.52 is: 52,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,628.04 : 192,947.18 = 35,133.52 : x
  2. Step 2: Convert to fraction form
    128,628.04/192,947.18 = 35,133.52/x
  3. Step 3: Cross multiply
    128,628.04x = 192,947.18 × 35,133.52
  4. Step 4: Simplify right side
    128,628.04x = 6,778,913,607.47
  5. Step 5: Solve for x
    x = 6,778,913,607.47/128,628.04
  6. Step 6: Final answer
    x = 52,701.68

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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.