Home / 152,640.90-210,657.78-88,977.36

Finding the Fourth Proportional to 152,640.90, 210,657.78 and 88,977.36

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Solution

The fourth proportional to 152,640.90, 210,657.78 and 88,977.36 is: 122,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,640.90 : 210,657.78 = 88,977.36 : x
  2. Step 2: Convert to fraction form
    152,640.90/210,657.78 = 88,977.36/x
  3. Step 3: Cross multiply
    152,640.90x = 210,657.78 × 88,977.36
  4. Step 4: Simplify right side
    152,640.90x = 18,743,773,127.86
  5. Step 5: Solve for x
    x = 18,743,773,127.86/152,640.90
  6. Step 6: Final answer
    x = 122,796.53

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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.