Home / 190,966.32-263,541-130,663.44

Finding the Fourth Proportional to 190,966.32, 263,541 and 130,663.44

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Solution

The fourth proportional to 190,966.32, 263,541 and 130,663.44 is: 180,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,966.32 : 263,541 = 130,663.44 : x
  2. Step 2: Convert to fraction form
    190,966.32/263,541 = 130,663.44/x
  3. Step 3: Cross multiply
    190,966.32x = 263,541 × 130,663.44
  4. Step 4: Simplify right side
    190,966.32x = 34,435,173,641.04
  5. Step 5: Solve for x
    x = 34,435,173,641.04/190,966.32
  6. Step 6: Final answer
    x = 180,320.66

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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.