Home / 108,979.20-150,316.56-105,322.32

Finding the Fourth Proportional to 108,979.20, 150,316.56 and 105,322.32

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Solution

The fourth proportional to 108,979.20, 150,316.56 and 105,322.32 is: 145,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.20 : 150,316.56 = 105,322.32 : x
  2. Step 2: Convert to fraction form
    108,979.20/150,316.56 = 105,322.32/x
  3. Step 3: Cross multiply
    108,979.20x = 150,316.56 × 105,322.32
  4. Step 4: Simplify right side
    108,979.20x = 15,831,688,833.62
  5. Step 5: Solve for x
    x = 15,831,688,833.62/108,979.20
  6. Step 6: Final answer
    x = 145,272.57

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1.5x scale

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.