Home / 148,117.16-222,077.19-81,588.62

Finding the Fourth Proportional to 148,117.16, 222,077.19 and 81,588.62

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Solution

The fourth proportional to 148,117.16, 222,077.19 and 81,588.62 is: 122,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,117.16 : 222,077.19 = 81,588.62 : x
  2. Step 2: Convert to fraction form
    148,117.16/222,077.19 = 81,588.62/x
  3. Step 3: Cross multiply
    148,117.16x = 222,077.19 × 81,588.62
  4. Step 4: Simplify right side
    148,117.16x = 18,118,971,465.58
  5. Step 5: Solve for x
    x = 18,118,971,465.58/148,117.16
  6. Step 6: Final answer
    x = 122,328.64

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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.