Home / 142,551.90-196,743.72-81,298.23

Finding the Fourth Proportional to 142,551.90, 196,743.72 and 81,298.23

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Solution

The fourth proportional to 142,551.90, 196,743.72 and 81,298.23 is: 112,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,551.90 : 196,743.72 = 81,298.23 : x
  2. Step 2: Convert to fraction form
    142,551.90/196,743.72 = 81,298.23/x
  3. Step 3: Cross multiply
    142,551.90x = 196,743.72 × 81,298.23
  4. Step 4: Simplify right side
    142,551.90x = 15,994,916,199.62
  5. Step 5: Solve for x
    x = 15,994,916,199.62/142,551.90
  6. Step 6: Final answer
    x = 112,204.16

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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.