Home / 101,173.10-151,820.40-42,002.60

Finding the Fourth Proportional to 101,173.10, 151,820.40 and 42,002.60

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Solution

The fourth proportional to 101,173.10, 151,820.40 and 42,002.60 is: 63,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,173.10 : 151,820.40 = 42,002.60 : x
  2. Step 2: Convert to fraction form
    101,173.10/151,820.40 = 42,002.60/x
  3. Step 3: Cross multiply
    101,173.10x = 151,820.40 × 42,002.60
  4. Step 4: Simplify right side
    101,173.10x = 6,376,851,533.04
  5. Step 5: Solve for x
    x = 6,376,851,533.04/101,173.10
  6. Step 6: Final answer
    x = 63,029.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.