Home / 209,174.58-288,663.15-113,681.28

Finding the Fourth Proportional to 209,174.58, 288,663.15 and 113,681.28

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Solution

The fourth proportional to 209,174.58, 288,663.15 and 113,681.28 is: 156,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,174.58 : 288,663.15 = 113,681.28 : x
  2. Step 2: Convert to fraction form
    209,174.58/288,663.15 = 113,681.28/x
  3. Step 3: Cross multiply
    209,174.58x = 288,663.15 × 113,681.28
  4. Step 4: Simplify right side
    209,174.58x = 32,815,596,380.83
  5. Step 5: Solve for x
    x = 32,815,596,380.83/209,174.58
  6. Step 6: Final answer
    x = 156,881.38

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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.