Home / 190,263.87-262,589.85-109,689.93

Finding the Fourth Proportional to 190,263.87, 262,589.85 and 109,689.93

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Solution

The fourth proportional to 190,263.87, 262,589.85 and 109,689.93 is: 151,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,263.87 : 262,589.85 = 109,689.93 : x
  2. Step 2: Convert to fraction form
    190,263.87/262,589.85 = 109,689.93/x
  3. Step 3: Cross multiply
    190,263.87x = 262,589.85 × 109,689.93
  4. Step 4: Simplify right side
    190,263.87x = 28,803,462,265.21
  5. Step 5: Solve for x
    x = 28,803,462,265.21/190,263.87
  6. Step 6: Final answer
    x = 151,386.93

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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.