Home / 139,776.04-192,884.34-76,113.64

Finding the Fourth Proportional to 139,776.04, 192,884.34 and 76,113.64

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Solution

The fourth proportional to 139,776.04, 192,884.34 and 76,113.64 is: 105,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,776.04 : 192,884.34 = 76,113.64 : x
  2. Step 2: Convert to fraction form
    139,776.04/192,884.34 = 76,113.64/x
  3. Step 3: Cross multiply
    139,776.04x = 192,884.34 × 76,113.64
  4. Step 4: Simplify right side
    139,776.04x = 14,681,129,216.40
  5. Step 5: Solve for x
    x = 14,681,129,216.40/139,776.04
  6. Step 6: Final answer
    x = 105,033.23

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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.