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Finding the Fourth Proportional to 187,762.12, 259,111.88 and 102,879.18

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Solution

The fourth proportional to 187,762.12, 259,111.88 and 102,879.18 is: 141,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,762.12 : 259,111.88 = 102,879.18 : x
  2. Step 2: Convert to fraction form
    187,762.12/259,111.88 = 102,879.18/x
  3. Step 3: Cross multiply
    187,762.12x = 259,111.88 × 102,879.18
  4. Step 4: Simplify right side
    187,762.12x = 26,657,217,614.06
  5. Step 5: Solve for x
    x = 26,657,217,614.06/187,762.12
  6. Step 6: Final answer
    x = 141,973.35

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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.