Home / 130,200.50-179,675.08-76,490.42

Finding the Fourth Proportional to 130,200.50, 179,675.08 and 76,490.42

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Solution

The fourth proportional to 130,200.50, 179,675.08 and 76,490.42 is: 105,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,200.50 : 179,675.08 = 76,490.42 : x
  2. Step 2: Convert to fraction form
    130,200.50/179,675.08 = 76,490.42/x
  3. Step 3: Cross multiply
    130,200.50x = 179,675.08 × 76,490.42
  4. Step 4: Simplify right side
    130,200.50x = 13,743,421,243.13
  5. Step 5: Solve for x
    x = 13,743,421,243.13/130,200.50
  6. Step 6: Final answer
    x = 105,555.82

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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.