Home / 124,688.40-187,032.60-122,720.10

Finding the Fourth Proportional to 124,688.40, 187,032.60 and 122,720.10

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Solution

The fourth proportional to 124,688.40, 187,032.60 and 122,720.10 is: 184,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,688.40 : 187,032.60 = 122,720.10 : x
  2. Step 2: Convert to fraction form
    124,688.40/187,032.60 = 122,720.10/x
  3. Step 3: Cross multiply
    124,688.40x = 187,032.60 × 122,720.10
  4. Step 4: Simplify right side
    124,688.40x = 22,952,659,375.26
  5. Step 5: Solve for x
    x = 22,952,659,375.26/124,688.40
  6. Step 6: Final answer
    x = 184,080.15

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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.