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Finding the Fourth Proportional to 122,693.64, 184,040.12 and 38,460.20

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Solution

The fourth proportional to 122,693.64, 184,040.12 and 38,460.20 is: 57,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,693.64 : 184,040.12 = 38,460.20 : x
  2. Step 2: Convert to fraction form
    122,693.64/184,040.12 = 38,460.20/x
  3. Step 3: Cross multiply
    122,693.64x = 184,040.12 × 38,460.20
  4. Step 4: Simplify right side
    122,693.64x = 7,078,219,823.22
  5. Step 5: Solve for x
    x = 7,078,219,823.22/122,693.64
  6. Step 6: Final answer
    x = 57,690.19

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1.5x scale

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.