Home / 140,083.88-193,313.94-76,420.32

Finding the Fourth Proportional to 140,083.88, 193,313.94 and 76,420.32

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Solution

The fourth proportional to 140,083.88, 193,313.94 and 76,420.32 is: 105,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,083.88 : 193,313.94 = 76,420.32 : x
  2. Step 2: Convert to fraction form
    140,083.88/193,313.94 = 76,420.32/x
  3. Step 3: Cross multiply
    140,083.88x = 193,313.94 × 76,420.32
  4. Step 4: Simplify right side
    140,083.88x = 14,773,113,155.26
  5. Step 5: Solve for x
    x = 14,773,113,155.26/140,083.88
  6. Step 6: Final answer
    x = 105,459.05

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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.