Home / 108,689,458.20-163,034,187.30-87,166,097.70

Finding the Fourth Proportional to 108,689,458.20, 163,034,187.30 and 87,166,097.70

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Solution

The fourth proportional to 108,689,458.20, 163,034,187.30 and 87,166,097.70 is: 130,749,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,689,458.20 : 163,034,187.30 = 87,166,097.70 : x
  2. Step 2: Convert to fraction form
    108,689,458.20/163,034,187.30 = 87,166,097.70/x
  3. Step 3: Cross multiply
    108,689,458.20x = 163,034,187.30 × 87,166,097.70
  4. Step 4: Simplify right side
    108,689,458.20x = 14,211,053,898,631,900
  5. Step 5: Solve for x
    x = 14,211,053,898,631,900/108,689,458.20
  6. Step 6: Final answer
    x = 130,749,146.55

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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.