Home / 102,440.88-153,708.84-43,290.36

Finding the Fourth Proportional to 102,440.88, 153,708.84 and 43,290.36

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Solution

The fourth proportional to 102,440.88, 153,708.84 and 43,290.36 is: 64,955.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,440.88 : 153,708.84 = 43,290.36 : x
  2. Step 2: Convert to fraction form
    102,440.88/153,708.84 = 43,290.36/x
  3. Step 3: Cross multiply
    102,440.88x = 153,708.84 × 43,290.36
  4. Step 4: Simplify right side
    102,440.88x = 6,654,111,018.78
  5. Step 5: Solve for x
    x = 6,654,111,018.78/102,440.88
  6. Step 6: Final answer
    x = 64,955.62

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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.