Home / 156,145.42-215,302.35-124,315.66

Finding the Fourth Proportional to 156,145.42, 215,302.35 and 124,315.66

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Solution

The fourth proportional to 156,145.42, 215,302.35 and 124,315.66 is: 171,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,145.42 : 215,302.35 = 124,315.66 : x
  2. Step 2: Convert to fraction form
    156,145.42/215,302.35 = 124,315.66/x
  3. Step 3: Cross multiply
    156,145.42x = 215,302.35 × 124,315.66
  4. Step 4: Simplify right side
    156,145.42x = 26,765,453,739.80
  5. Step 5: Solve for x
    x = 26,765,453,739.80/156,145.42
  6. Step 6: Final answer
    x = 171,413.63

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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.