Home / 122,130.42-168,549.32-76,847.22

Finding the Fourth Proportional to 122,130.42, 168,549.32 and 76,847.22

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Solution

The fourth proportional to 122,130.42, 168,549.32 and 76,847.22 is: 106,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,130.42 : 168,549.32 = 76,847.22 : x
  2. Step 2: Convert to fraction form
    122,130.42/168,549.32 = 76,847.22/x
  3. Step 3: Cross multiply
    122,130.42x = 168,549.32 × 76,847.22
  4. Step 4: Simplify right side
    122,130.42x = 12,952,546,674.89
  5. Step 5: Solve for x
    x = 12,952,546,674.89/122,130.42
  6. Step 6: Final answer
    x = 106,055.04

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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.