Home / 171,005.10-256,507.65-139,901.10

Finding the Fourth Proportional to 171,005.10, 256,507.65 and 139,901.10

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Solution

The fourth proportional to 171,005.10, 256,507.65 and 139,901.10 is: 209,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,005.10 : 256,507.65 = 139,901.10 : x
  2. Step 2: Convert to fraction form
    171,005.10/256,507.65 = 139,901.10/x
  3. Step 3: Cross multiply
    171,005.10x = 256,507.65 × 139,901.10
  4. Step 4: Simplify right side
    171,005.10x = 35,885,702,393.42
  5. Step 5: Solve for x
    x = 35,885,702,393.42/171,005.10
  6. Step 6: Final answer
    x = 209,851.65

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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.