Home / 131,147.61-180,995.63-74,558.85

Finding the Fourth Proportional to 131,147.61, 180,995.63 and 74,558.85

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Solution

The fourth proportional to 131,147.61, 180,995.63 and 74,558.85 is: 102,897.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,147.61 : 180,995.63 = 74,558.85 : x
  2. Step 2: Convert to fraction form
    131,147.61/180,995.63 = 74,558.85/x
  3. Step 3: Cross multiply
    131,147.61x = 180,995.63 × 74,558.85
  4. Step 4: Simplify right side
    131,147.61x = 13,494,825,655.03
  5. Step 5: Solve for x
    x = 13,494,825,655.03/131,147.61
  6. Step 6: Final answer
    x = 102,897.99

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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.