Home / 131,912-182,050.08-72,307.52

Finding the Fourth Proportional to 131,912, 182,050.08 and 72,307.52

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Solution

The fourth proportional to 131,912, 182,050.08 and 72,307.52 is: 99,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,912 : 182,050.08 = 72,307.52 : x
  2. Step 2: Convert to fraction form
    131,912/182,050.08 = 72,307.52/x
  3. Step 3: Cross multiply
    131,912x = 182,050.08 × 72,307.52
  4. Step 4: Simplify right side
    131,912x = 13,163,589,800.60
  5. Step 5: Solve for x
    x = 13,163,589,800.60/131,912
  6. Step 6: Final answer
    x = 99,790.69

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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.