Home / 88,158.88-121,618.56-52,328.64

Finding the Fourth Proportional to 88,158.88, 121,618.56 and 52,328.64

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Solution

The fourth proportional to 88,158.88, 121,618.56 and 52,328.64 is: 72,189.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,158.88 : 121,618.56 = 52,328.64 : x
  2. Step 2: Convert to fraction form
    88,158.88/121,618.56 = 52,328.64/x
  3. Step 3: Cross multiply
    88,158.88x = 121,618.56 × 52,328.64
  4. Step 4: Simplify right side
    88,158.88x = 6,364,133,843.56
  5. Step 5: Solve for x
    x = 6,364,133,843.56/88,158.88
  6. Step 6: Final answer
    x = 72,189.37

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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.