Home / 139,859.08-193,000.39-76,195.51

Finding the Fourth Proportional to 139,859.08, 193,000.39 and 76,195.51

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Solution

The fourth proportional to 139,859.08, 193,000.39 and 76,195.51 is: 105,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,859.08 : 193,000.39 = 76,195.51 : x
  2. Step 2: Convert to fraction form
    139,859.08/193,000.39 = 76,195.51/x
  3. Step 3: Cross multiply
    139,859.08x = 193,000.39 × 76,195.51
  4. Step 4: Simplify right side
    139,859.08x = 14,705,762,473.26
  5. Step 5: Solve for x
    x = 14,705,762,473.26/139,859.08
  6. Step 6: Final answer
    x = 105,147.00

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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.