Home / 187,890.77-281,766.20-75,533.18

Finding the Fourth Proportional to 187,890.77, 281,766.20 and 75,533.18

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Solution

The fourth proportional to 187,890.77, 281,766.20 and 75,533.18 is: 113,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,890.77 : 281,766.20 = 75,533.18 : x
  2. Step 2: Convert to fraction form
    187,890.77/281,766.20 = 75,533.18/x
  3. Step 3: Cross multiply
    187,890.77x = 281,766.20 × 75,533.18
  4. Step 4: Simplify right side
    187,890.77x = 21,282,695,316.02
  5. Step 5: Solve for x
    x = 21,282,695,316.02/187,890.77
  6. Step 6: Final answer
    x = 113,271.64

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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.