Home / 130,773.72-180,506.34-77,076.12

Finding the Fourth Proportional to 130,773.72, 180,506.34 and 77,076.12

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Solution

The fourth proportional to 130,773.72, 180,506.34 and 77,076.12 is: 106,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,773.72 : 180,506.34 = 77,076.12 : x
  2. Step 2: Convert to fraction form
    130,773.72/180,506.34 = 77,076.12/x
  3. Step 3: Cross multiply
    130,773.72x = 180,506.34 × 77,076.12
  4. Step 4: Simplify right side
    130,773.72x = 13,912,728,322.60
  5. Step 5: Solve for x
    x = 13,912,728,322.60/130,773.72
  6. Step 6: Final answer
    x = 106,387.80

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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.