Home / 128,769.04-193,137.10-49,829.24

Finding the Fourth Proportional to 128,769.04, 193,137.10 and 49,829.24

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Solution

The fourth proportional to 128,769.04, 193,137.10 and 49,829.24 is: 74,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,769.04 : 193,137.10 = 49,829.24 : x
  2. Step 2: Convert to fraction form
    128,769.04/193,137.10 = 49,829.24/x
  3. Step 3: Cross multiply
    128,769.04x = 193,137.10 × 49,829.24
  4. Step 4: Simplify right side
    128,769.04x = 9,623,874,908.80
  5. Step 5: Solve for x
    x = 9,623,874,908.80/128,769.04
  6. Step 6: Final answer
    x = 74,737.49

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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.