Home / 131,670.93-181,704.59-71,240.25

Finding the Fourth Proportional to 131,670.93, 181,704.59 and 71,240.25

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Solution

The fourth proportional to 131,670.93, 181,704.59 and 71,240.25 is: 98,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,670.93 : 181,704.59 = 71,240.25 : x
  2. Step 2: Convert to fraction form
    131,670.93/181,704.59 = 71,240.25/x
  3. Step 3: Cross multiply
    131,670.93x = 181,704.59 × 71,240.25
  4. Step 4: Simplify right side
    131,670.93x = 12,944,679,509.22
  5. Step 5: Solve for x
    x = 12,944,679,509.22/131,670.93
  6. Step 6: Final answer
    x = 98,310.84

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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.