Home / 112,944.96-155,844-70,496.64

Finding the Fourth Proportional to 112,944.96, 155,844 and 70,496.64

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Solution

The fourth proportional to 112,944.96, 155,844 and 70,496.64 is: 97,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,944.96 : 155,844 = 70,496.64 : x
  2. Step 2: Convert to fraction form
    112,944.96/155,844 = 70,496.64/x
  3. Step 3: Cross multiply
    112,944.96x = 155,844 × 70,496.64
  4. Step 4: Simplify right side
    112,944.96x = 10,986,478,364.16
  5. Step 5: Solve for x
    x = 10,986,478,364.16/112,944.96
  6. Step 6: Final answer
    x = 97,272.85

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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.