Home / 171,939.12-237,215.16-112,357.68

Finding the Fourth Proportional to 171,939.12, 237,215.16 and 112,357.68

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Solution

The fourth proportional to 171,939.12, 237,215.16 and 112,357.68 is: 155,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,939.12 : 237,215.16 = 112,357.68 : x
  2. Step 2: Convert to fraction form
    171,939.12/237,215.16 = 112,357.68/x
  3. Step 3: Cross multiply
    171,939.12x = 237,215.16 × 112,357.68
  4. Step 4: Simplify right side
    171,939.12x = 26,652,945,038.43
  5. Step 5: Solve for x
    x = 26,652,945,038.43/171,939.12
  6. Step 6: Final answer
    x = 155,013.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.