Home / 187,989.66-259,429.77-103,106.52

Finding the Fourth Proportional to 187,989.66, 259,429.77 and 103,106.52

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Solution

The fourth proportional to 187,989.66, 259,429.77 and 103,106.52 is: 142,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,989.66 : 259,429.77 = 103,106.52 : x
  2. Step 2: Convert to fraction form
    187,989.66/259,429.77 = 103,106.52/x
  3. Step 3: Cross multiply
    187,989.66x = 259,429.77 × 103,106.52
  4. Step 4: Simplify right side
    187,989.66x = 26,748,900,769.10
  5. Step 5: Solve for x
    x = 26,748,900,769.10/187,989.66
  6. Step 6: Final answer
    x = 142,289.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.