Home / 169,845.81-254,837.88-85,630.20

Finding the Fourth Proportional to 169,845.81, 254,837.88 and 85,630.20

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Solution

The fourth proportional to 169,845.81, 254,837.88 and 85,630.20 is: 128,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,845.81 : 254,837.88 = 85,630.20 : x
  2. Step 2: Convert to fraction form
    169,845.81/254,837.88 = 85,630.20/x
  3. Step 3: Cross multiply
    169,845.81x = 254,837.88 × 85,630.20
  4. Step 4: Simplify right side
    169,845.81x = 21,821,818,631.98
  5. Step 5: Solve for x
    x = 21,821,818,631.98/169,845.81
  6. Step 6: Final answer
    x = 128,480.17

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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.