Home / 128,341.85-192,545.58-49,434.89

Finding the Fourth Proportional to 128,341.85, 192,545.58 and 49,434.89

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Solution

The fourth proportional to 128,341.85, 192,545.58 and 49,434.89 is: 74,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,341.85 : 192,545.58 = 49,434.89 : x
  2. Step 2: Convert to fraction form
    128,341.85/192,545.58 = 49,434.89/x
  3. Step 3: Cross multiply
    128,341.85x = 192,545.58 × 49,434.89
  4. Step 4: Simplify right side
    128,341.85x = 9,518,469,567.29
  5. Step 5: Solve for x
    x = 9,518,469,567.29/128,341.85
  6. Step 6: Final answer
    x = 74,164.97

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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.