Home / 157,203.42-216,945.26-85,584.66

Finding the Fourth Proportional to 157,203.42, 216,945.26 and 85,584.66

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Solution

The fourth proportional to 157,203.42, 216,945.26 and 85,584.66 is: 118,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,203.42 : 216,945.26 = 85,584.66 : x
  2. Step 2: Convert to fraction form
    157,203.42/216,945.26 = 85,584.66/x
  3. Step 3: Cross multiply
    157,203.42x = 216,945.26 × 85,584.66
  4. Step 4: Simplify right side
    157,203.42x = 18,567,186,315.71
  5. Step 5: Solve for x
    x = 18,567,186,315.71/157,203.42
  6. Step 6: Final answer
    x = 118,109.30

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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.