Home / 140,070.16-193,295.58-76,406.59

Finding the Fourth Proportional to 140,070.16, 193,295.58 and 76,406.59

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Solution

The fourth proportional to 140,070.16, 193,295.58 and 76,406.59 is: 105,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,070.16 : 193,295.58 = 76,406.59 : x
  2. Step 2: Convert to fraction form
    140,070.16/193,295.58 = 76,406.59/x
  3. Step 3: Cross multiply
    140,070.16x = 193,295.58 × 76,406.59
  4. Step 4: Simplify right side
    140,070.16x = 14,769,055,747.84
  5. Step 5: Solve for x
    x = 14,769,055,747.84/140,070.16
  6. Step 6: Final answer
    x = 105,440.41

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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.