Home / 109,366.80-164,050.20-90,704.40

Finding the Fourth Proportional to 109,366.80, 164,050.20 and 90,704.40

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Solution

The fourth proportional to 109,366.80, 164,050.20 and 90,704.40 is: 136,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,366.80 : 164,050.20 = 90,704.40 : x
  2. Step 2: Convert to fraction form
    109,366.80/164,050.20 = 90,704.40/x
  3. Step 3: Cross multiply
    109,366.80x = 164,050.20 × 90,704.40
  4. Step 4: Simplify right side
    109,366.80x = 14,880,074,960.88
  5. Step 5: Solve for x
    x = 14,880,074,960.88/109,366.80
  6. Step 6: Final answer
    x = 136,056.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.