Home / 142,395.57-196,323.30-91,315.44

Finding the Fourth Proportional to 142,395.57, 196,323.30 and 91,315.44

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Solution

The fourth proportional to 142,395.57, 196,323.30 and 91,315.44 is: 125,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,395.57 : 196,323.30 = 91,315.44 : x
  2. Step 2: Convert to fraction form
    142,395.57/196,323.30 = 91,315.44/x
  3. Step 3: Cross multiply
    142,395.57x = 196,323.30 × 91,315.44
  4. Step 4: Simplify right side
    142,395.57x = 17,927,348,521.75
  5. Step 5: Solve for x
    x = 17,927,348,521.75/142,395.57
  6. Step 6: Final answer
    x = 125,898.22

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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.