Home / 152,051.22-209,824.08-83,139.48

Finding the Fourth Proportional to 152,051.22, 209,824.08 and 83,139.48

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Solution

The fourth proportional to 152,051.22, 209,824.08 and 83,139.48 is: 114,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,051.22 : 209,824.08 = 83,139.48 : x
  2. Step 2: Convert to fraction form
    152,051.22/209,824.08 = 83,139.48/x
  3. Step 3: Cross multiply
    152,051.22x = 209,824.08 × 83,139.48
  4. Step 4: Simplify right side
    152,051.22x = 17,444,664,902.68
  5. Step 5: Solve for x
    x = 17,444,664,902.68/152,051.22
  6. Step 6: Final answer
    x = 114,728.87

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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.