Home / 119,172.83-164,459.68-64,726.05

Finding the Fourth Proportional to 119,172.83, 164,459.68 and 64,726.05

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Solution

The fourth proportional to 119,172.83, 164,459.68 and 64,726.05 is: 89,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,172.83 : 164,459.68 = 64,726.05 : x
  2. Step 2: Convert to fraction form
    119,172.83/164,459.68 = 64,726.05/x
  3. Step 3: Cross multiply
    119,172.83x = 164,459.68 × 64,726.05
  4. Step 4: Simplify right side
    119,172.83x = 10,644,826,289.66
  5. Step 5: Solve for x
    x = 10,644,826,289.66/119,172.83
  6. Step 6: Final answer
    x = 89,322.60

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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.