Home / 170,749.10-256,123.65-82,175.60

Finding the Fourth Proportional to 170,749.10, 256,123.65 and 82,175.60

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Solution

The fourth proportional to 170,749.10, 256,123.65 and 82,175.60 is: 123,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,749.10 : 256,123.65 = 82,175.60 : x
  2. Step 2: Convert to fraction form
    170,749.10/256,123.65 = 82,175.60/x
  3. Step 3: Cross multiply
    170,749.10x = 256,123.65 × 82,175.60
  4. Step 4: Simplify right side
    170,749.10x = 21,047,114,612.94
  5. Step 5: Solve for x
    x = 21,047,114,612.94/170,749.10
  6. Step 6: Final answer
    x = 123,263.40

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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.