Home / 140,328.66-193,656.36-76,670.52

Finding the Fourth Proportional to 140,328.66, 193,656.36 and 76,670.52

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Solution

The fourth proportional to 140,328.66, 193,656.36 and 76,670.52 is: 105,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,328.66 : 193,656.36 = 76,670.52 : x
  2. Step 2: Convert to fraction form
    140,328.66/193,656.36 = 76,670.52/x
  3. Step 3: Cross multiply
    140,328.66x = 193,656.36 × 76,670.52
  4. Step 4: Simplify right side
    140,328.66x = 14,847,733,822.51
  5. Step 5: Solve for x
    x = 14,847,733,822.51/140,328.66
  6. Step 6: Final answer
    x = 105,806.85

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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.