Home / 190,613.64-263,047.08-105,730.70

Finding the Fourth Proportional to 190,613.64, 263,047.08 and 105,730.70

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Solution

The fourth proportional to 190,613.64, 263,047.08 and 105,730.70 is: 145,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,613.64 : 263,047.08 = 105,730.70 : x
  2. Step 2: Convert to fraction form
    190,613.64/263,047.08 = 105,730.70/x
  3. Step 3: Cross multiply
    190,613.64x = 263,047.08 × 105,730.70
  4. Step 4: Simplify right side
    190,613.64x = 27,812,151,901.36
  5. Step 5: Solve for x
    x = 27,812,151,901.36/190,613.64
  6. Step 6: Final answer
    x = 145,908.51

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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.