Home / 130,116.30-194,785.65-77,498.70

Finding the Fourth Proportional to 130,116.30, 194,785.65 and 77,498.70

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Solution

The fourth proportional to 130,116.30, 194,785.65 and 77,498.70 is: 116,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,116.30 : 194,785.65 = 77,498.70 : x
  2. Step 2: Convert to fraction form
    130,116.30/194,785.65 = 77,498.70/x
  3. Step 3: Cross multiply
    130,116.30x = 194,785.65 × 77,498.70
  4. Step 4: Simplify right side
    130,116.30x = 15,095,634,653.66
  5. Step 5: Solve for x
    x = 15,095,634,653.66/130,116.30
  6. Step 6: Final answer
    x = 116,016.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.