Home / 209,143.02-288,611.55-113,646.54

Finding the Fourth Proportional to 209,143.02, 288,611.55 and 113,646.54

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Solution

The fourth proportional to 209,143.02, 288,611.55 and 113,646.54 is: 156,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,143.02 : 288,611.55 = 113,646.54 : x
  2. Step 2: Convert to fraction form
    209,143.02/288,611.55 = 113,646.54/x
  3. Step 3: Cross multiply
    209,143.02x = 288,611.55 × 113,646.54
  4. Step 4: Simplify right side
    209,143.02x = 32,799,704,061.54
  5. Step 5: Solve for x
    x = 32,799,704,061.54/209,143.02
  6. Step 6: Final answer
    x = 156,829.06

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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.