Home / 124,564.40-186,845.96-74,659.40

Finding the Fourth Proportional to 124,564.40, 186,845.96 and 74,659.40

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Solution

The fourth proportional to 124,564.40, 186,845.96 and 74,659.40 is: 111,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,564.40 : 186,845.96 = 74,659.40 : x
  2. Step 2: Convert to fraction form
    124,564.40/186,845.96 = 74,659.40/x
  3. Step 3: Cross multiply
    124,564.40x = 186,845.96 × 74,659.40
  4. Step 4: Simplify right side
    124,564.40x = 13,949,807,266.02
  5. Step 5: Solve for x
    x = 13,949,807,266.02/124,564.40
  6. Step 6: Final answer
    x = 111,988.72

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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.