Home / 157,739.93-236,232.70-90,977.66

Finding the Fourth Proportional to 157,739.93, 236,232.70 and 90,977.66

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Solution

The fourth proportional to 157,739.93, 236,232.70 and 90,977.66 is: 136,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,739.93 : 236,232.70 = 90,977.66 : x
  2. Step 2: Convert to fraction form
    157,739.93/236,232.70 = 90,977.66/x
  3. Step 3: Cross multiply
    157,739.93x = 236,232.70 × 90,977.66
  4. Step 4: Simplify right side
    157,739.93x = 21,491,898,261.48
  5. Step 5: Solve for x
    x = 21,491,898,261.48/157,739.93
  6. Step 6: Final answer
    x = 136,248.94

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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.