Home / 187,999.90-259,438.08-103,117.30

Finding the Fourth Proportional to 187,999.90, 259,438.08 and 103,117.30

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Solution

The fourth proportional to 187,999.90, 259,438.08 and 103,117.30 is: 142,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,999.90 : 259,438.08 = 103,117.30 : x
  2. Step 2: Convert to fraction form
    187,999.90/259,438.08 = 103,117.30/x
  3. Step 3: Cross multiply
    187,999.90x = 259,438.08 × 103,117.30
  4. Step 4: Simplify right side
    187,999.90x = 26,752,554,326.78
  5. Step 5: Solve for x
    x = 26,752,554,326.78/187,999.90
  6. Step 6: Final answer
    x = 142,300.90

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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.