Home / 171,617.90-257,349.09-111,587.18

Finding the Fourth Proportional to 171,617.90, 257,349.09 and 111,587.18

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Solution

The fourth proportional to 171,617.90, 257,349.09 and 111,587.18 is: 167,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,617.90 : 257,349.09 = 111,587.18 : x
  2. Step 2: Convert to fraction form
    171,617.90/257,349.09 = 111,587.18/x
  3. Step 3: Cross multiply
    171,617.90x = 257,349.09 × 111,587.18
  4. Step 4: Simplify right side
    171,617.90x = 28,716,859,228.67
  5. Step 5: Solve for x
    x = 28,716,859,228.67/171,617.90
  6. Step 6: Final answer
    x = 167,330.21

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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.