Home / 152,921.75-211,032.02-85,853.75

Finding the Fourth Proportional to 152,921.75, 211,032.02 and 85,853.75

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Solution

The fourth proportional to 152,921.75, 211,032.02 and 85,853.75 is: 118,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,921.75 : 211,032.02 = 85,853.75 : x
  2. Step 2: Convert to fraction form
    152,921.75/211,032.02 = 85,853.75/x
  3. Step 3: Cross multiply
    152,921.75x = 211,032.02 × 85,853.75
  4. Step 4: Simplify right side
    152,921.75x = 18,117,890,287.08
  5. Step 5: Solve for x
    x = 18,117,890,287.08/152,921.75
  6. Step 6: Final answer
    x = 118,478.18

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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.