Home / 121,441.48-167,609.73-89,702.44

Finding the Fourth Proportional to 121,441.48, 167,609.73 and 89,702.44

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Solution

The fourth proportional to 121,441.48, 167,609.73 and 89,702.44 is: 123,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.48 : 167,609.73 = 89,702.44 : x
  2. Step 2: Convert to fraction form
    121,441.48/167,609.73 = 89,702.44/x
  3. Step 3: Cross multiply
    121,441.48x = 167,609.73 × 89,702.44
  4. Step 4: Simplify right side
    121,441.48x = 15,035,001,748.74
  5. Step 5: Solve for x
    x = 15,035,001,748.74/121,441.48
  6. Step 6: Final answer
    x = 123,804.50

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1.5x scale

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.