Home / 100,812.24-151,070.56-89,741.12

Finding the Fourth Proportional to 100,812.24, 151,070.56 and 89,741.12

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Solution

The fourth proportional to 100,812.24, 151,070.56 and 89,741.12 is: 134,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812.24 : 151,070.56 = 89,741.12 : x
  2. Step 2: Convert to fraction form
    100,812.24/151,070.56 = 89,741.12/x
  3. Step 3: Cross multiply
    100,812.24x = 151,070.56 × 89,741.12
  4. Step 4: Simplify right side
    100,812.24x = 13,557,241,253.43
  5. Step 5: Solve for x
    x = 13,557,241,253.43/100,812.24
  6. Step 6: Final answer
    x = 134,480.11

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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.