Home / 128,433.47-192,705.59-49,603.06

Finding the Fourth Proportional to 128,433.47, 192,705.59 and 49,603.06

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Solution

The fourth proportional to 128,433.47, 192,705.59 and 49,603.06 is: 74,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,433.47 : 192,705.59 = 49,603.06 : x
  2. Step 2: Convert to fraction form
    128,433.47/192,705.59 = 49,603.06/x
  3. Step 3: Cross multiply
    128,433.47x = 192,705.59 × 49,603.06
  4. Step 4: Simplify right side
    128,433.47x = 9,558,786,585.35
  5. Step 5: Solve for x
    x = 9,558,786,585.35/128,433.47
  6. Step 6: Final answer
    x = 74,425.98

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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.