Home / 185,613.04-256,145.84-105,039.12

Finding the Fourth Proportional to 185,613.04, 256,145.84 and 105,039.12

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Solution

The fourth proportional to 185,613.04, 256,145.84 and 105,039.12 is: 144,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.04 : 256,145.84 = 105,039.12 : x
  2. Step 2: Convert to fraction form
    185,613.04/256,145.84 = 105,039.12/x
  3. Step 3: Cross multiply
    185,613.04x = 256,145.84 × 105,039.12
  4. Step 4: Simplify right side
    185,613.04x = 26,905,333,625.26
  5. Step 5: Solve for x
    x = 26,905,333,625.26/185,613.04
  6. Step 6: Final answer
    x = 144,953.90

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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.