Home / 169,845.10-254,767.65-85,864.30

Finding the Fourth Proportional to 169,845.10, 254,767.65 and 85,864.30

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Solution

The fourth proportional to 169,845.10, 254,767.65 and 85,864.30 is: 128,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,845.10 : 254,767.65 = 85,864.30 : x
  2. Step 2: Convert to fraction form
    169,845.10/254,767.65 = 85,864.30/x
  3. Step 3: Cross multiply
    169,845.10x = 254,767.65 × 85,864.30
  4. Step 4: Simplify right side
    169,845.10x = 21,875,445,929.90
  5. Step 5: Solve for x
    x = 21,875,445,929.90/169,845.10
  6. Step 6: Final answer
    x = 128,796.45

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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.