Home / 209,200.95-288,685.08-113,706.81

Finding the Fourth Proportional to 209,200.95, 288,685.08 and 113,706.81

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Solution

The fourth proportional to 209,200.95, 288,685.08 and 113,706.81 is: 156,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,200.95 : 288,685.08 = 113,706.81 : x
  2. Step 2: Convert to fraction form
    209,200.95/288,685.08 = 113,706.81/x
  3. Step 3: Cross multiply
    209,200.95x = 288,685.08 × 113,706.81
  4. Step 4: Simplify right side
    209,200.95x = 32,825,459,541.39
  5. Step 5: Solve for x
    x = 32,825,459,541.39/209,200.95
  6. Step 6: Final answer
    x = 156,908.75

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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.