Home / 142,242.70-196,294.44-81,810.50

Finding the Fourth Proportional to 142,242.70, 196,294.44 and 81,810.50

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Solution

The fourth proportional to 142,242.70, 196,294.44 and 81,810.50 is: 112,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,242.70 : 196,294.44 = 81,810.50 : x
  2. Step 2: Convert to fraction form
    142,242.70/196,294.44 = 81,810.50/x
  3. Step 3: Cross multiply
    142,242.70x = 196,294.44 × 81,810.50
  4. Step 4: Simplify right side
    142,242.70x = 16,058,946,283.62
  5. Step 5: Solve for x
    x = 16,058,946,283.62/142,242.70
  6. Step 6: Final answer
    x = 112,898.21

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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.