Home / 204,660.69-282,437.36-128,172.63

Finding the Fourth Proportional to 204,660.69, 282,437.36 and 128,172.63

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Solution

The fourth proportional to 204,660.69, 282,437.36 and 128,172.63 is: 176,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,660.69 : 282,437.36 = 128,172.63 : x
  2. Step 2: Convert to fraction form
    204,660.69/282,437.36 = 128,172.63/x
  3. Step 3: Cross multiply
    204,660.69x = 282,437.36 × 128,172.63
  4. Step 4: Simplify right side
    204,660.69x = 36,200,739,241.46
  5. Step 5: Solve for x
    x = 36,200,739,241.46/204,660.69
  6. Step 6: Final answer
    x = 176,881.74

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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.