Home / 183,618.40-275,427.60-127,631.20

Finding the Fourth Proportional to 183,618.40, 275,427.60 and 127,631.20

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Solution

The fourth proportional to 183,618.40, 275,427.60 and 127,631.20 is: 191,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,618.40 : 275,427.60 = 127,631.20 : x
  2. Step 2: Convert to fraction form
    183,618.40/275,427.60 = 127,631.20/x
  3. Step 3: Cross multiply
    183,618.40x = 275,427.60 × 127,631.20
  4. Step 4: Simplify right side
    183,618.40x = 35,153,155,101.12
  5. Step 5: Solve for x
    x = 35,153,155,101.12/183,618.40
  6. Step 6: Final answer
    x = 191,446.80

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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.