Home / 142,463.83-196,604.93-81,219.07

Finding the Fourth Proportional to 142,463.83, 196,604.93 and 81,219.07

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Solution

The fourth proportional to 142,463.83, 196,604.93 and 81,219.07 is: 112,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,463.83 : 196,604.93 = 81,219.07 : x
  2. Step 2: Convert to fraction form
    142,463.83/196,604.93 = 81,219.07/x
  3. Step 3: Cross multiply
    142,463.83x = 196,604.93 × 81,219.07
  4. Step 4: Simplify right side
    142,463.83x = 15,968,068,182.90
  5. Step 5: Solve for x
    x = 15,968,068,182.90/142,463.83
  6. Step 6: Final answer
    x = 112,085.07

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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.