Home / 142,061.92-196,051.84-81,652.16

Finding the Fourth Proportional to 142,061.92, 196,051.84 and 81,652.16

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Solution

The fourth proportional to 142,061.92, 196,051.84 and 81,652.16 is: 112,683.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,061.92 : 196,051.84 = 81,652.16 : x
  2. Step 2: Convert to fraction form
    142,061.92/196,051.84 = 81,652.16/x
  3. Step 3: Cross multiply
    142,061.92x = 196,051.84 × 81,652.16
  4. Step 4: Simplify right side
    142,061.92x = 16,008,056,207.97
  5. Step 5: Solve for x
    x = 16,008,056,207.97/142,061.92
  6. Step 6: Final answer
    x = 112,683.65

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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.