Home / 201,742.02-278,310.44-130,145.10

Finding the Fourth Proportional to 201,742.02, 278,310.44 and 130,145.10

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Solution

The fourth proportional to 201,742.02, 278,310.44 and 130,145.10 is: 179,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,742.02 : 278,310.44 = 130,145.10 : x
  2. Step 2: Convert to fraction form
    201,742.02/278,310.44 = 130,145.10/x
  3. Step 3: Cross multiply
    201,742.02x = 278,310.44 × 130,145.10
  4. Step 4: Simplify right side
    201,742.02x = 36,220,740,044.84
  5. Step 5: Solve for x
    x = 36,220,740,044.84/201,742.02
  6. Step 6: Final answer
    x = 179,539.89

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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.