Home / 88,137.16-121,616.34-52,328.68

Finding the Fourth Proportional to 88,137.16, 121,616.34 and 52,328.68

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Solution

The fourth proportional to 88,137.16, 121,616.34 and 52,328.68 is: 72,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137.16 : 121,616.34 = 52,328.68 : x
  2. Step 2: Convert to fraction form
    88,137.16/121,616.34 = 52,328.68/x
  3. Step 3: Cross multiply
    88,137.16x = 121,616.34 × 52,328.68
  4. Step 4: Simplify right side
    88,137.16x = 6,364,022,538.63
  5. Step 5: Solve for x
    x = 6,364,022,538.63/88,137.16
  6. Step 6: Final answer
    x = 72,205.90

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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.