Home / 103,604,706.76-142,972,679.70-57,193,766.92

Finding the Fourth Proportional to 103,604,706.76, 142,972,679.70 and 57,193,766.92

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Solution

The fourth proportional to 103,604,706.76, 142,972,679.70 and 57,193,766.92 is: 78,926,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,604,706.76 : 142,972,679.70 = 57,193,766.92 : x
  2. Step 2: Convert to fraction form
    103,604,706.76/142,972,679.70 = 57,193,766.92/x
  3. Step 3: Cross multiply
    103,604,706.76x = 142,972,679.70 × 57,193,766.92
  4. Step 4: Simplify right side
    103,604,706.76x = 8,177,146,118,689,615
  5. Step 5: Solve for x
    x = 8,177,146,118,689,615/103,604,706.76
  6. Step 6: Final answer
    x = 78,926,396.05

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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.