Home / 104,976,141.70-157,464,212.55-85,828,519.30

Finding the Fourth Proportional to 104,976,141.70, 157,464,212.55 and 85,828,519.30

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Solution

The fourth proportional to 104,976,141.70, 157,464,212.55 and 85,828,519.30 is: 128,742,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,141.70 : 157,464,212.55 = 85,828,519.30 : x
  2. Step 2: Convert to fraction form
    104,976,141.70/157,464,212.55 = 85,828,519.30/x
  3. Step 3: Cross multiply
    104,976,141.70x = 157,464,212.55 × 85,828,519.30
  4. Step 4: Simplify right side
    104,976,141.70x = 13,514,920,205,906,978
  5. Step 5: Solve for x
    x = 13,514,920,205,906,978/104,976,141.70
  6. Step 6: Final answer
    x = 128,742,778.95

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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.