Home / 115,910,137.60-173,865,206.40-86,999,747.20

Finding the Fourth Proportional to 115,910,137.60, 173,865,206.40 and 86,999,747.20

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Solution

The fourth proportional to 115,910,137.60, 173,865,206.40 and 86,999,747.20 is: 130,499,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910,137.60 : 173,865,206.40 = 86,999,747.20 : x
  2. Step 2: Convert to fraction form
    115,910,137.60/173,865,206.40 = 86,999,747.20/x
  3. Step 3: Cross multiply
    115,910,137.60x = 173,865,206.40 × 86,999,747.20
  4. Step 4: Simplify right side
    115,910,137.60x = 15,126,229,003,675,824
  5. Step 5: Solve for x
    x = 15,126,229,003,675,824/115,910,137.60
  6. Step 6: Final answer
    x = 130,499,620.80

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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.