Home / 103,139,617.20-142,352,890.20-59,116,122.60

Finding the Fourth Proportional to 103,139,617.20, 142,352,890.20 and 59,116,122.60

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Solution

The fourth proportional to 103,139,617.20, 142,352,890.20 and 59,116,122.60 is: 81,591,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,139,617.20 : 142,352,890.20 = 59,116,122.60 : x
  2. Step 2: Convert to fraction form
    103,139,617.20/142,352,890.20 = 59,116,122.60/x
  3. Step 3: Cross multiply
    103,139,617.20x = 142,352,890.20 × 59,116,122.60
  4. Step 4: Simplify right side
    103,139,617.20x = 8,415,350,909,527,538
  5. Step 5: Solve for x
    x = 8,415,350,909,527,538/103,139,617.20
  6. Step 6: Final answer
    x = 81,591,837.72

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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.