Home / 88,190.20-121,700.64-49,946.86

Finding the Fourth Proportional to 88,190.20, 121,700.64 and 49,946.86

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Solution

The fourth proportional to 88,190.20, 121,700.64 and 49,946.86 is: 68,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,190.20 : 121,700.64 = 49,946.86 : x
  2. Step 2: Convert to fraction form
    88,190.20/121,700.64 = 49,946.86/x
  3. Step 3: Cross multiply
    88,190.20x = 121,700.64 × 49,946.86
  4. Step 4: Simplify right side
    88,190.20x = 6,078,564,827.99
  5. Step 5: Solve for x
    x = 6,078,564,827.99/88,190.20
  6. Step 6: Final answer
    x = 68,925.63

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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.