Home / 121,622.48-167,746.66-104,655.15

Finding the Fourth Proportional to 121,622.48, 167,746.66 and 104,655.15

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Solution

The fourth proportional to 121,622.48, 167,746.66 and 104,655.15 is: 144,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,622.48 : 167,746.66 = 104,655.15 : x
  2. Step 2: Convert to fraction form
    121,622.48/167,746.66 = 104,655.15/x
  3. Step 3: Cross multiply
    121,622.48x = 167,746.66 × 104,655.15
  4. Step 4: Simplify right side
    121,622.48x = 17,555,551,602.66
  5. Step 5: Solve for x
    x = 17,555,551,602.66/121,622.48
  6. Step 6: Final answer
    x = 144,344.63

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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.