Home / 138,257.19-207,509.37-70,835.16

Finding the Fourth Proportional to 138,257.19, 207,509.37 and 70,835.16

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Solution

The fourth proportional to 138,257.19, 207,509.37 and 70,835.16 is: 106,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,257.19 : 207,509.37 = 70,835.16 : x
  2. Step 2: Convert to fraction form
    138,257.19/207,509.37 = 70,835.16/x
  3. Step 3: Cross multiply
    138,257.19x = 207,509.37 × 70,835.16
  4. Step 4: Simplify right side
    138,257.19x = 14,698,959,425.45
  5. Step 5: Solve for x
    x = 14,698,959,425.45/138,257.19
  6. Step 6: Final answer
    x = 106,316.06

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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.