Home / 187,988.16-259,427.70-103,105.02

Finding the Fourth Proportional to 187,988.16, 259,427.70 and 103,105.02

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Solution

The fourth proportional to 187,988.16, 259,427.70 and 103,105.02 is: 142,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,988.16 : 259,427.70 = 103,105.02 : x
  2. Step 2: Convert to fraction form
    187,988.16/259,427.70 = 103,105.02/x
  3. Step 3: Cross multiply
    187,988.16x = 259,427.70 × 103,105.02
  4. Step 4: Simplify right side
    187,988.16x = 26,748,298,197.05
  5. Step 5: Solve for x
    x = 26,748,298,197.05/187,988.16
  6. Step 6: Final answer
    x = 142,287.14

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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.