Home / 142,062.92-196,053.22-81,653.16

Finding the Fourth Proportional to 142,062.92, 196,053.22 and 81,653.16

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Solution

The fourth proportional to 142,062.92, 196,053.22 and 81,653.16 is: 112,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,062.92 : 196,053.22 = 81,653.16 : x
  2. Step 2: Convert to fraction form
    142,062.92/196,053.22 = 81,653.16/x
  3. Step 3: Cross multiply
    142,062.92x = 196,053.22 × 81,653.16
  4. Step 4: Simplify right side
    142,062.92x = 16,008,364,941.18
  5. Step 5: Solve for x
    x = 16,008,364,941.18/142,062.92
  6. Step 6: Final answer
    x = 112,685.03

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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.