Home / 108,867,120.08-163,031,802.96-81,134,535.76

Finding the Fourth Proportional to 108,867,120.08, 163,031,802.96 and 81,134,535.76

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Solution

The fourth proportional to 108,867,120.08, 163,031,802.96 and 81,134,535.76 is: 121,501,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,867,120.08 : 163,031,802.96 = 81,134,535.76 : x
  2. Step 2: Convert to fraction form
    108,867,120.08/163,031,802.96 = 81,134,535.76/x
  3. Step 3: Cross multiply
    108,867,120.08x = 163,031,802.96 × 81,134,535.76
  4. Step 4: Simplify right side
    108,867,120.08x = 13,227,509,647,275,396
  5. Step 5: Solve for x
    x = 13,227,509,647,275,396/108,867,120.08
  6. Step 6: Final answer
    x = 121,501,419.69

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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.