Home / 209,130.57-288,602.02-113,637.27

Finding the Fourth Proportional to 209,130.57, 288,602.02 and 113,637.27

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Solution

The fourth proportional to 209,130.57, 288,602.02 and 113,637.27 is: 156,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.57 : 288,602.02 = 113,637.27 : x
  2. Step 2: Convert to fraction form
    209,130.57/288,602.02 = 113,637.27/x
  3. Step 3: Cross multiply
    209,130.57x = 288,602.02 × 113,637.27
  4. Step 4: Simplify right side
    209,130.57x = 32,795,943,658.09
  5. Step 5: Solve for x
    x = 32,795,943,658.09/209,130.57
  6. Step 6: Final answer
    x = 156,820.42

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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.