Home / 131,012.08-180,778.44-73,643.32

Finding the Fourth Proportional to 131,012.08, 180,778.44 and 73,643.32

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Solution

The fourth proportional to 131,012.08, 180,778.44 and 73,643.32 is: 101,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,012.08 : 180,778.44 = 73,643.32 : x
  2. Step 2: Convert to fraction form
    131,012.08/180,778.44 = 73,643.32/x
  3. Step 3: Cross multiply
    131,012.08x = 180,778.44 × 73,643.32
  4. Step 4: Simplify right side
    131,012.08x = 13,313,124,506.02
  5. Step 5: Solve for x
    x = 13,313,124,506.02/131,012.08
  6. Step 6: Final answer
    x = 101,617.53

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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.