Home / 147,499.20-203,536.80-83,822.40

Finding the Fourth Proportional to 147,499.20, 203,536.80 and 83,822.40

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Solution

The fourth proportional to 147,499.20, 203,536.80 and 83,822.40 is: 115,668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,499.20 : 203,536.80 = 83,822.40 : x
  2. Step 2: Convert to fraction form
    147,499.20/203,536.80 = 83,822.40/x
  3. Step 3: Cross multiply
    147,499.20x = 203,536.80 × 83,822.40
  4. Step 4: Simplify right side
    147,499.20x = 17,060,943,064.32
  5. Step 5: Solve for x
    x = 17,060,943,064.32/147,499.20
  6. Step 6: Final answer
    x = 115,668.04

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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.