Home / 130,010.88-179,427.04-79,011.84

Finding the Fourth Proportional to 130,010.88, 179,427.04 and 79,011.84

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Solution

The fourth proportional to 130,010.88, 179,427.04 and 79,011.84 is: 109,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.88 : 179,427.04 = 79,011.84 : x
  2. Step 2: Convert to fraction form
    130,010.88/179,427.04 = 79,011.84/x
  3. Step 3: Cross multiply
    130,010.88x = 179,427.04 × 79,011.84
  4. Step 4: Simplify right side
    130,010.88x = 14,176,860,576.15
  5. Step 5: Solve for x
    x = 14,176,860,576.15/130,010.88
  6. Step 6: Final answer
    x = 109,043.65

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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.