Home / 128,588.11-192,894.86-44,337.20

Finding the Fourth Proportional to 128,588.11, 192,894.86 and 44,337.20

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Solution

The fourth proportional to 128,588.11, 192,894.86 and 44,337.20 is: 66,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,588.11 : 192,894.86 = 44,337.20 : x
  2. Step 2: Convert to fraction form
    128,588.11/192,894.86 = 44,337.20/x
  3. Step 3: Cross multiply
    128,588.11x = 192,894.86 × 44,337.20
  4. Step 4: Simplify right side
    128,588.11x = 8,552,417,133.16
  5. Step 5: Solve for x
    x = 8,552,417,133.16/128,588.11
  6. Step 6: Final answer
    x = 66,510.17

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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.