Home / 130,144.25-179,597.79-72,782.93

Finding the Fourth Proportional to 130,144.25, 179,597.79 and 72,782.93

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Solution

The fourth proportional to 130,144.25, 179,597.79 and 72,782.93 is: 100,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,144.25 : 179,597.79 = 72,782.93 : x
  2. Step 2: Convert to fraction form
    130,144.25/179,597.79 = 72,782.93/x
  3. Step 3: Cross multiply
    130,144.25x = 179,597.79 × 72,782.93
  4. Step 4: Simplify right side
    130,144.25x = 13,071,652,479.74
  5. Step 5: Solve for x
    x = 13,071,652,479.74/130,144.25
  6. Step 6: Final answer
    x = 100,439.73

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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.