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Finding the Fourth Proportional to 170,683.48, 255,939.06 and 99,630.52

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Solution

The fourth proportional to 170,683.48, 255,939.06 and 99,630.52 is: 149,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,683.48 : 255,939.06 = 99,630.52 : x
  2. Step 2: Convert to fraction form
    170,683.48/255,939.06 = 99,630.52/x
  3. Step 3: Cross multiply
    170,683.48x = 255,939.06 × 99,630.52
  4. Step 4: Simplify right side
    170,683.48x = 25,499,341,636.11
  5. Step 5: Solve for x
    x = 25,499,341,636.11/170,683.48
  6. Step 6: Final answer
    x = 149,395.49

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1.5x scale

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.