Home / 201,736.02-278,302.16-130,139.10

Finding the Fourth Proportional to 201,736.02, 278,302.16 and 130,139.10

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Solution

The fourth proportional to 201,736.02, 278,302.16 and 130,139.10 is: 179,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,736.02 : 278,302.16 = 130,139.10 : x
  2. Step 2: Convert to fraction form
    201,736.02/278,302.16 = 130,139.10/x
  3. Step 3: Cross multiply
    201,736.02x = 278,302.16 × 130,139.10
  4. Step 4: Simplify right side
    201,736.02x = 36,217,992,630.46
  5. Step 5: Solve for x
    x = 36,217,992,630.46/201,736.02
  6. Step 6: Final answer
    x = 179,531.61

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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.