Home / 170,721.96-235,594.96-99,108.64

Finding the Fourth Proportional to 170,721.96, 235,594.96 and 99,108.64

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Solution

The fourth proportional to 170,721.96, 235,594.96 and 99,108.64 is: 136,769.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,721.96 : 235,594.96 = 99,108.64 : x
  2. Step 2: Convert to fraction form
    170,721.96/235,594.96 = 99,108.64/x
  3. Step 3: Cross multiply
    170,721.96x = 235,594.96 × 99,108.64
  4. Step 4: Simplify right side
    170,721.96x = 23,349,496,076.45
  5. Step 5: Solve for x
    x = 23,349,496,076.45/170,721.96
  6. Step 6: Final answer
    x = 136,769.14

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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.