Home / 190,528.49-263,003.29-142,920.34

Finding the Fourth Proportional to 190,528.49, 263,003.29 and 142,920.34

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Solution

The fourth proportional to 190,528.49, 263,003.29 and 142,920.34 is: 197,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,528.49 : 263,003.29 = 142,920.34 : x
  2. Step 2: Convert to fraction form
    190,528.49/263,003.29 = 142,920.34/x
  3. Step 3: Cross multiply
    190,528.49x = 263,003.29 × 142,920.34
  4. Step 4: Simplify right side
    190,528.49x = 37,588,518,613.11
  5. Step 5: Solve for x
    x = 37,588,518,613.11/190,528.49
  6. Step 6: Final answer
    x = 197,285.55

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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.