Home / 142,236.36-196,292.14-81,807.02

Finding the Fourth Proportional to 142,236.36, 196,292.14 and 81,807.02

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Solution

The fourth proportional to 142,236.36, 196,292.14 and 81,807.02 is: 112,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,236.36 : 196,292.14 = 81,807.02 : x
  2. Step 2: Convert to fraction form
    142,236.36/196,292.14 = 81,807.02/x
  3. Step 3: Cross multiply
    142,236.36x = 196,292.14 × 81,807.02
  4. Step 4: Simplify right side
    142,236.36x = 16,058,075,022.82
  5. Step 5: Solve for x
    x = 16,058,075,022.82/142,236.36
  6. Step 6: Final answer
    x = 112,897.12

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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.