Home / 130,329.90-179,898.03-76,612.32

Finding the Fourth Proportional to 130,329.90, 179,898.03 and 76,612.32

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Solution

The fourth proportional to 130,329.90, 179,898.03 and 76,612.32 is: 105,750.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,329.90 : 179,898.03 = 76,612.32 : x
  2. Step 2: Convert to fraction form
    130,329.90/179,898.03 = 76,612.32/x
  3. Step 3: Cross multiply
    130,329.90x = 179,898.03 × 76,612.32
  4. Step 4: Simplify right side
    130,329.90x = 13,782,405,441.73
  5. Step 5: Solve for x
    x = 13,782,405,441.73/130,329.90
  6. Step 6: Final answer
    x = 105,750.14

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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.