Home / 128,583.65-192,888.15-44,332.72

Finding the Fourth Proportional to 128,583.65, 192,888.15 and 44,332.72

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Solution

The fourth proportional to 128,583.65, 192,888.15 and 44,332.72 is: 66,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,583.65 : 192,888.15 = 44,332.72 : x
  2. Step 2: Convert to fraction form
    128,583.65/192,888.15 = 44,332.72/x
  3. Step 3: Cross multiply
    128,583.65x = 192,888.15 × 44,332.72
  4. Step 4: Simplify right side
    128,583.65x = 8,551,256,029.30
  5. Step 5: Solve for x
    x = 8,551,256,029.30/128,583.65
  6. Step 6: Final answer
    x = 66,503.45

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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.