Home / 187,989.16-259,429.08-103,106.04

Finding the Fourth Proportional to 187,989.16, 259,429.08 and 103,106.04

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Solution

The fourth proportional to 187,989.16, 259,429.08 and 103,106.04 is: 142,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,989.16 : 259,429.08 = 103,106.04 : x
  2. Step 2: Convert to fraction form
    187,989.16/259,429.08 = 103,106.04/x
  3. Step 3: Cross multiply
    187,989.16x = 259,429.08 × 103,106.04
  4. Step 4: Simplify right side
    187,989.16x = 26,748,705,099.64
  5. Step 5: Solve for x
    x = 26,748,705,099.64/187,989.16
  6. Step 6: Final answer
    x = 142,288.55

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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.