Home / 130,529.30-180,126.18-76,817.25

Finding the Fourth Proportional to 130,529.30, 180,126.18 and 76,817.25

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Solution

The fourth proportional to 130,529.30, 180,126.18 and 76,817.25 is: 106,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,529.30 : 180,126.18 = 76,817.25 : x
  2. Step 2: Convert to fraction form
    130,529.30/180,126.18 = 76,817.25/x
  3. Step 3: Cross multiply
    130,529.30x = 180,126.18 × 76,817.25
  4. Step 4: Simplify right side
    130,529.30x = 13,836,797,800.61
  5. Step 5: Solve for x
    x = 13,836,797,800.61/130,529.30
  6. Step 6: Final answer
    x = 106,005.31

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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.