Home / 97,811.40-146,717.10-91,979.40

Finding the Fourth Proportional to 97,811.40, 146,717.10 and 91,979.40

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Solution

The fourth proportional to 97,811.40, 146,717.10 and 91,979.40 is: 137,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,811.40 : 146,717.10 = 91,979.40 : x
  2. Step 2: Convert to fraction form
    97,811.40/146,717.10 = 91,979.40/x
  3. Step 3: Cross multiply
    97,811.40x = 146,717.10 × 91,979.40
  4. Step 4: Simplify right side
    97,811.40x = 13,494,950,827.74
  5. Step 5: Solve for x
    x = 13,494,950,827.74/97,811.40
  6. Step 6: Final answer
    x = 137,969.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.