Home / 115,536.31-159,440.13-64,548.90

Finding the Fourth Proportional to 115,536.31, 159,440.13 and 64,548.90

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Solution

The fourth proportional to 115,536.31, 159,440.13 and 64,548.90 is: 89,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,536.31 : 159,440.13 = 64,548.90 : x
  2. Step 2: Convert to fraction form
    115,536.31/159,440.13 = 64,548.90/x
  3. Step 3: Cross multiply
    115,536.31x = 159,440.13 × 64,548.90
  4. Step 4: Simplify right side
    115,536.31x = 10,291,685,007.36
  5. Step 5: Solve for x
    x = 10,291,685,007.36/115,536.31
  6. Step 6: Final answer
    x = 89,077.50

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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.