Home / 101,272.10-151,908.15-42,101.60

Finding the Fourth Proportional to 101,272.10, 151,908.15 and 42,101.60

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Solution

The fourth proportional to 101,272.10, 151,908.15 and 42,101.60 is: 63,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,272.10 : 151,908.15 = 42,101.60 : x
  2. Step 2: Convert to fraction form
    101,272.10/151,908.15 = 42,101.60/x
  3. Step 3: Cross multiply
    101,272.10x = 151,908.15 × 42,101.60
  4. Step 4: Simplify right side
    101,272.10x = 6,395,576,168.04
  5. Step 5: Solve for x
    x = 6,395,576,168.04/101,272.10
  6. Step 6: Final answer
    x = 63,152.40

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1.5x scale

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.