Home / 231,345.32-319,238.96-140,688.77

Finding the Fourth Proportional to 231,345.32, 319,238.96 and 140,688.77

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Solution

The fourth proportional to 231,345.32, 319,238.96 and 140,688.77 is: 194,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,345.32 : 319,238.96 = 140,688.77 : x
  2. Step 2: Convert to fraction form
    231,345.32/319,238.96 = 140,688.77/x
  3. Step 3: Cross multiply
    231,345.32x = 319,238.96 × 140,688.77
  4. Step 4: Simplify right side
    231,345.32x = 44,913,334,318.84
  5. Step 5: Solve for x
    x = 44,913,334,318.84/231,345.32
  6. Step 6: Final answer
    x = 194,139.80

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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.