Home / 142,335.14-196,426.62-77,807.93

Finding the Fourth Proportional to 142,335.14, 196,426.62 and 77,807.93

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Solution

The fourth proportional to 142,335.14, 196,426.62 and 77,807.93 is: 107,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,335.14 : 196,426.62 = 77,807.93 : x
  2. Step 2: Convert to fraction form
    142,335.14/196,426.62 = 77,807.93/x
  3. Step 3: Cross multiply
    142,335.14x = 196,426.62 × 77,807.93
  4. Step 4: Simplify right side
    142,335.14x = 15,283,547,716.96
  5. Step 5: Solve for x
    x = 15,283,547,716.96/142,335.14
  6. Step 6: Final answer
    x = 107,377.20

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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.