Home / 187,959.28-259,386.44-103,070.76

Finding the Fourth Proportional to 187,959.28, 259,386.44 and 103,070.76

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Solution

The fourth proportional to 187,959.28, 259,386.44 and 103,070.76 is: 142,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,959.28 : 259,386.44 = 103,070.76 : x
  2. Step 2: Convert to fraction form
    187,959.28/259,386.44 = 103,070.76/x
  3. Step 3: Cross multiply
    187,959.28x = 259,386.44 × 103,070.76
  4. Step 4: Simplify right side
    187,959.28x = 26,735,157,504.49
  5. Step 5: Solve for x
    x = 26,735,157,504.49/187,959.28
  6. Step 6: Final answer
    x = 142,239.09

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1.5x scale

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.