Home / 209,367.45-288,973.59-127,713.76

Finding the Fourth Proportional to 209,367.45, 288,973.59 and 127,713.76

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Solution

The fourth proportional to 209,367.45, 288,973.59 and 127,713.76 is: 176,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,367.45 : 288,973.59 = 127,713.76 : x
  2. Step 2: Convert to fraction form
    209,367.45/288,973.59 = 127,713.76/x
  3. Step 3: Cross multiply
    209,367.45x = 288,973.59 × 127,713.76
  4. Step 4: Simplify right side
    209,367.45x = 36,905,903,719.60
  5. Step 5: Solve for x
    x = 36,905,903,719.60/209,367.45
  6. Step 6: Final answer
    x = 176,273.36

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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.