Home / 142,812.16-196,853.43-112,548.94

Finding the Fourth Proportional to 142,812.16, 196,853.43 and 112,548.94

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Solution

The fourth proportional to 142,812.16, 196,853.43 and 112,548.94 is: 155,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,812.16 : 196,853.43 = 112,548.94 : x
  2. Step 2: Convert to fraction form
    142,812.16/196,853.43 = 112,548.94/x
  3. Step 3: Cross multiply
    142,812.16x = 196,853.43 × 112,548.94
  4. Step 4: Simplify right side
    142,812.16x = 22,155,644,881.86
  5. Step 5: Solve for x
    x = 22,155,644,881.86/142,812.16
  6. Step 6: Final answer
    x = 155,138.36

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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.