Home / 122,019.72-168,385.53-68,304.77

Finding the Fourth Proportional to 122,019.72, 168,385.53 and 68,304.77

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Solution

The fourth proportional to 122,019.72, 168,385.53 and 68,304.77 is: 94,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,019.72 : 168,385.53 = 68,304.77 : x
  2. Step 2: Convert to fraction form
    122,019.72/168,385.53 = 68,304.77/x
  3. Step 3: Cross multiply
    122,019.72x = 168,385.53 × 68,304.77
  4. Step 4: Simplify right side
    122,019.72x = 11,501,534,943.64
  5. Step 5: Solve for x
    x = 11,501,534,943.64/122,019.72
  6. Step 6: Final answer
    x = 94,259.64

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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.