Home / 130,229.56-195,357.10-66,875.82

Finding the Fourth Proportional to 130,229.56, 195,357.10 and 66,875.82

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Solution

The fourth proportional to 130,229.56, 195,357.10 and 66,875.82 is: 100,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,229.56 : 195,357.10 = 66,875.82 : x
  2. Step 2: Convert to fraction form
    130,229.56/195,357.10 = 66,875.82/x
  3. Step 3: Cross multiply
    130,229.56x = 195,357.10 × 66,875.82
  4. Step 4: Simplify right side
    130,229.56x = 13,064,666,255.32
  5. Step 5: Solve for x
    x = 13,064,666,255.32/130,229.56
  6. Step 6: Final answer
    x = 100,320.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.