Home / 142,089.96-196,088.89-77,563.02

Finding the Fourth Proportional to 142,089.96, 196,088.89 and 77,563.02

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Solution

The fourth proportional to 142,089.96, 196,088.89 and 77,563.02 is: 107,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,089.96 : 196,088.89 = 77,563.02 : x
  2. Step 2: Convert to fraction form
    142,089.96/196,088.89 = 77,563.02/x
  3. Step 3: Cross multiply
    142,089.96x = 196,088.89 × 77,563.02
  4. Step 4: Simplify right side
    142,089.96x = 15,209,246,053.44
  5. Step 5: Solve for x
    x = 15,209,246,053.44/142,089.96
  6. Step 6: Final answer
    x = 107,039.56

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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.