Home / 140,445.03-193,814.13-76,782.81

Finding the Fourth Proportional to 140,445.03, 193,814.13 and 76,782.81

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Solution

The fourth proportional to 140,445.03, 193,814.13 and 76,782.81 is: 105,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,445.03 : 193,814.13 = 76,782.81 : x
  2. Step 2: Convert to fraction form
    140,445.03/193,814.13 = 76,782.81/x
  3. Step 3: Cross multiply
    140,445.03x = 193,814.13 × 76,782.81
  4. Step 4: Simplify right side
    140,445.03x = 14,881,593,519.11
  5. Step 5: Solve for x
    x = 14,881,593,519.11/140,445.03
  6. Step 6: Final answer
    x = 105,960.27

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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.