Home / 145,878.29-217,283.26-139,052.69

Finding the Fourth Proportional to 145,878.29, 217,283.26 and 139,052.69

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Solution

The fourth proportional to 145,878.29, 217,283.26 and 139,052.69 is: 207,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,878.29 : 217,283.26 = 139,052.69 : x
  2. Step 2: Convert to fraction form
    145,878.29/217,283.26 = 139,052.69/x
  3. Step 3: Cross multiply
    145,878.29x = 217,283.26 × 139,052.69
  4. Step 4: Simplify right side
    145,878.29x = 30,213,821,794.97
  5. Step 5: Solve for x
    x = 30,213,821,794.97/145,878.29
  6. Step 6: Final answer
    x = 207,116.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.