Home / 102,662.16-141,740.45-91,888.35

Finding the Fourth Proportional to 102,662.16, 141,740.45 and 91,888.35

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Solution

The fourth proportional to 102,662.16, 141,740.45 and 91,888.35 is: 126,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,662.16 : 141,740.45 = 91,888.35 : x
  2. Step 2: Convert to fraction form
    102,662.16/141,740.45 = 91,888.35/x
  3. Step 3: Cross multiply
    102,662.16x = 141,740.45 × 91,888.35
  4. Step 4: Simplify right side
    102,662.16x = 13,024,296,078.76
  5. Step 5: Solve for x
    x = 13,024,296,078.76/102,662.16
  6. Step 6: Final answer
    x = 126,865.60

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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.