Home / 119,459.40-164,785.38-74,669.64

Finding the Fourth Proportional to 119,459.40, 164,785.38 and 74,669.64

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Solution

The fourth proportional to 119,459.40, 164,785.38 and 74,669.64 is: 103,001.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,459.40 : 164,785.38 = 74,669.64 : x
  2. Step 2: Convert to fraction form
    119,459.40/164,785.38 = 74,669.64/x
  3. Step 3: Cross multiply
    119,459.40x = 164,785.38 × 74,669.64
  4. Step 4: Simplify right side
    119,459.40x = 12,304,465,001.86
  5. Step 5: Solve for x
    x = 12,304,465,001.86/119,459.40
  6. Step 6: Final answer
    x = 103,001.23

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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.