Home / 142,031.70-195,921.09-91,026.32

Finding the Fourth Proportional to 142,031.70, 195,921.09 and 91,026.32

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Solution

The fourth proportional to 142,031.70, 195,921.09 and 91,026.32 is: 125,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,031.70 : 195,921.09 = 91,026.32 : x
  2. Step 2: Convert to fraction form
    142,031.70/195,921.09 = 91,026.32/x
  3. Step 3: Cross multiply
    142,031.70x = 195,921.09 × 91,026.32
  4. Step 4: Simplify right side
    142,031.70x = 17,833,974,853.48
  5. Step 5: Solve for x
    x = 17,833,974,853.48/142,031.70
  6. Step 6: Final answer
    x = 125,563.34

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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.