Home / 130,331.90-179,900.79-76,614.32

Finding the Fourth Proportional to 130,331.90, 179,900.79 and 76,614.32

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Solution

The fourth proportional to 130,331.90, 179,900.79 and 76,614.32 is: 105,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,331.90 : 179,900.79 = 76,614.32 : x
  2. Step 2: Convert to fraction form
    130,331.90/179,900.79 = 76,614.32/x
  3. Step 3: Cross multiply
    130,331.90x = 179,900.79 × 76,614.32
  4. Step 4: Simplify right side
    130,331.90x = 13,782,976,693.31
  5. Step 5: Solve for x
    x = 13,782,976,693.31/130,331.90
  6. Step 6: Final answer
    x = 105,752.90

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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.