Home / 97,427.80-146,141.70-81,681.40

Finding the Fourth Proportional to 97,427.80, 146,141.70 and 81,681.40

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Solution

The fourth proportional to 97,427.80, 146,141.70 and 81,681.40 is: 122,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,427.80 : 146,141.70 = 81,681.40 : x
  2. Step 2: Convert to fraction form
    97,427.80/146,141.70 = 81,681.40/x
  3. Step 3: Cross multiply
    97,427.80x = 146,141.70 × 81,681.40
  4. Step 4: Simplify right side
    97,427.80x = 11,937,058,654.38
  5. Step 5: Solve for x
    x = 11,937,058,654.38/97,427.80
  6. Step 6: Final answer
    x = 122,522.10

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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.