Home / 128,298.28-192,391.74-49,357.10

Finding the Fourth Proportional to 128,298.28, 192,391.74 and 49,357.10

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Solution

The fourth proportional to 128,298.28, 192,391.74 and 49,357.10 is: 74,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,298.28 : 192,391.74 = 49,357.10 : x
  2. Step 2: Convert to fraction form
    128,298.28/192,391.74 = 49,357.10/x
  3. Step 3: Cross multiply
    128,298.28x = 192,391.74 × 49,357.10
  4. Step 4: Simplify right side
    128,298.28x = 9,495,898,350.35
  5. Step 5: Solve for x
    x = 9,495,898,350.35/128,298.28
  6. Step 6: Final answer
    x = 74,014.23

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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.