Home / 153,840.96-212,181.12-97,231.68

Finding the Fourth Proportional to 153,840.96, 212,181.12 and 97,231.68

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Solution

The fourth proportional to 153,840.96, 212,181.12 and 97,231.68 is: 134,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,840.96 : 212,181.12 = 97,231.68 : x
  2. Step 2: Convert to fraction form
    153,840.96/212,181.12 = 97,231.68/x
  3. Step 3: Cross multiply
    153,840.96x = 212,181.12 × 97,231.68
  4. Step 4: Simplify right side
    153,840.96x = 20,630,726,761.88
  5. Step 5: Solve for x
    x = 20,630,726,761.88/153,840.96
  6. Step 6: Final answer
    x = 134,104.25

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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.