Home / 128,298.04-192,391.37-49,356.86

Finding the Fourth Proportional to 128,298.04, 192,391.37 and 49,356.86

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Solution

The fourth proportional to 128,298.04, 192,391.37 and 49,356.86 is: 74,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,298.04 : 192,391.37 = 49,356.86 : x
  2. Step 2: Convert to fraction form
    128,298.04/192,391.37 = 49,356.86/x
  3. Step 3: Cross multiply
    128,298.04x = 192,391.37 × 49,356.86
  4. Step 4: Simplify right side
    128,298.04x = 9,495,832,705.56
  5. Step 5: Solve for x
    x = 9,495,832,705.56/128,298.04
  6. Step 6: Final answer
    x = 74,013.86

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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.