Home / 140,341.84-193,669.48-76,678.28

Finding the Fourth Proportional to 140,341.84, 193,669.48 and 76,678.28

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Solution

The fourth proportional to 140,341.84, 193,669.48 and 76,678.28 is: 105,814.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,341.84 : 193,669.48 = 76,678.28 : x
  2. Step 2: Convert to fraction form
    140,341.84/193,669.48 = 76,678.28/x
  3. Step 3: Cross multiply
    140,341.84x = 193,669.48 × 76,678.28
  4. Step 4: Simplify right side
    140,341.84x = 14,850,242,614.89
  5. Step 5: Solve for x
    x = 14,850,242,614.89/140,341.84
  6. Step 6: Final answer
    x = 105,814.79

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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.