Home / 189,913.32-262,085.64-105,035.76

Finding the Fourth Proportional to 189,913.32, 262,085.64 and 105,035.76

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Solution

The fourth proportional to 189,913.32, 262,085.64 and 105,035.76 is: 144,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,913.32 : 262,085.64 = 105,035.76 : x
  2. Step 2: Convert to fraction form
    189,913.32/262,085.64 = 105,035.76/x
  3. Step 3: Cross multiply
    189,913.32x = 262,085.64 × 105,035.76
  4. Step 4: Simplify right side
    189,913.32x = 27,528,364,382.49
  5. Step 5: Solve for x
    x = 27,528,364,382.49/189,913.32
  6. Step 6: Final answer
    x = 144,952.26

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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.