Home / 128,875.32-193,321.62-44,643.96

Finding the Fourth Proportional to 128,875.32, 193,321.62 and 44,643.96

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Solution

The fourth proportional to 128,875.32, 193,321.62 and 44,643.96 is: 66,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,875.32 : 193,321.62 = 44,643.96 : x
  2. Step 2: Convert to fraction form
    128,875.32/193,321.62 = 44,643.96/x
  3. Step 3: Cross multiply
    128,875.32x = 193,321.62 × 44,643.96
  4. Step 4: Simplify right side
    128,875.32x = 8,630,642,670.42
  5. Step 5: Solve for x
    x = 8,630,642,670.42/128,875.32
  6. Step 6: Final answer
    x = 66,968.93

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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.