Home / 109,056.80-163,585.20-67,066.40

Finding the Fourth Proportional to 109,056.80, 163,585.20 and 67,066.40

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Solution

The fourth proportional to 109,056.80, 163,585.20 and 67,066.40 is: 100,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,056.80 : 163,585.20 = 67,066.40 : x
  2. Step 2: Convert to fraction form
    109,056.80/163,585.20 = 67,066.40/x
  3. Step 3: Cross multiply
    109,056.80x = 163,585.20 × 67,066.40
  4. Step 4: Simplify right side
    109,056.80x = 10,971,070,457.28
  5. Step 5: Solve for x
    x = 10,971,070,457.28/109,056.80
  6. Step 6: Final answer
    x = 100,599.60

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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.