Home / 145,296.09-217,943.79-38,680.07

Finding the Fourth Proportional to 145,296.09, 217,943.79 and 38,680.07

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Solution

The fourth proportional to 145,296.09, 217,943.79 and 38,680.07 is: 58,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,296.09 : 217,943.79 = 38,680.07 : x
  2. Step 2: Convert to fraction form
    145,296.09/217,943.79 = 38,680.07/x
  3. Step 3: Cross multiply
    145,296.09x = 217,943.79 × 38,680.07
  4. Step 4: Simplify right side
    145,296.09x = 8,430,079,963.55
  5. Step 5: Solve for x
    x = 8,430,079,963.55/145,296.09
  6. Step 6: Final answer
    x = 58,020.01

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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.