Home / 130,578.93-180,196.38-76,141.26

Finding the Fourth Proportional to 130,578.93, 180,196.38 and 76,141.26

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Solution

The fourth proportional to 130,578.93, 180,196.38 and 76,141.26 is: 105,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,578.93 : 180,196.38 = 76,141.26 : x
  2. Step 2: Convert to fraction form
    130,578.93/180,196.38 = 76,141.26/x
  3. Step 3: Cross multiply
    130,578.93x = 180,196.38 × 76,141.26
  4. Step 4: Simplify right side
    130,578.93x = 13,720,379,420.64
  5. Step 5: Solve for x
    x = 13,720,379,420.64/130,578.93
  6. Step 6: Final answer
    x = 105,073.46

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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.