Home / 141,208.72-194,869.40-77,547.88

Finding the Fourth Proportional to 141,208.72, 194,869.40 and 77,547.88

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Solution

The fourth proportional to 141,208.72, 194,869.40 and 77,547.88 is: 107,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,208.72 : 194,869.40 = 77,547.88 : x
  2. Step 2: Convert to fraction form
    141,208.72/194,869.40 = 77,547.88/x
  3. Step 3: Cross multiply
    141,208.72x = 194,869.40 × 77,547.88
  4. Step 4: Simplify right side
    141,208.72x = 15,111,708,846.87
  5. Step 5: Solve for x
    x = 15,111,708,846.87/141,208.72
  6. Step 6: Final answer
    x = 107,016.82

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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.