Home / 130,236.98-179,727.09-72,876.98

Finding the Fourth Proportional to 130,236.98, 179,727.09 and 72,876.98

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Solution

The fourth proportional to 130,236.98, 179,727.09 and 72,876.98 is: 100,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,236.98 : 179,727.09 = 72,876.98 : x
  2. Step 2: Convert to fraction form
    130,236.98/179,727.09 = 72,876.98/x
  3. Step 3: Cross multiply
    130,236.98x = 179,727.09 × 72,876.98
  4. Step 4: Simplify right side
    130,236.98x = 13,097,967,543.39
  5. Step 5: Solve for x
    x = 13,097,967,543.39/130,236.98
  6. Step 6: Final answer
    x = 100,570.26

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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.