Home / 170,869.72-235,784.10-99,247.90

Finding the Fourth Proportional to 170,869.72, 235,784.10 and 99,247.90

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Solution

The fourth proportional to 170,869.72, 235,784.10 and 99,247.90 is: 136,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,869.72 : 235,784.10 = 99,247.90 : x
  2. Step 2: Convert to fraction form
    170,869.72/235,784.10 = 99,247.90/x
  3. Step 3: Cross multiply
    170,869.72x = 235,784.10 × 99,247.90
  4. Step 4: Simplify right side
    170,869.72x = 23,401,076,778.39
  5. Step 5: Solve for x
    x = 23,401,076,778.39/170,869.72
  6. Step 6: Final answer
    x = 136,952.74

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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.