Home / 122,690.64-184,035.62-38,457.20

Finding the Fourth Proportional to 122,690.64, 184,035.62 and 38,457.20

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Solution

The fourth proportional to 122,690.64, 184,035.62 and 38,457.20 is: 57,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,690.64 : 184,035.62 = 38,457.20 : x
  2. Step 2: Convert to fraction form
    122,690.64/184,035.62 = 38,457.20/x
  3. Step 3: Cross multiply
    122,690.64x = 184,035.62 × 38,457.20
  4. Step 4: Simplify right side
    122,690.64x = 7,077,494,645.46
  5. Step 5: Solve for x
    x = 7,077,494,645.46/122,690.64
  6. Step 6: Final answer
    x = 57,685.69

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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.