Home / 102,661.16-141,739.07-91,887.35

Finding the Fourth Proportional to 102,661.16, 141,739.07 and 91,887.35

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Solution

The fourth proportional to 102,661.16, 141,739.07 and 91,887.35 is: 126,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,661.16 : 141,739.07 = 91,887.35 : x
  2. Step 2: Convert to fraction form
    102,661.16/141,739.07 = 91,887.35/x
  3. Step 3: Cross multiply
    102,661.16x = 141,739.07 × 91,887.35
  4. Step 4: Simplify right side
    102,661.16x = 13,024,026,365.63
  5. Step 5: Solve for x
    x = 13,024,026,365.63/102,661.16
  6. Step 6: Final answer
    x = 126,864.21

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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.