Home / 153,556.81-211,908.60-85,572.29

Finding the Fourth Proportional to 153,556.81, 211,908.60 and 85,572.29

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Solution

The fourth proportional to 153,556.81, 211,908.60 and 85,572.29 is: 118,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,556.81 : 211,908.60 = 85,572.29 : x
  2. Step 2: Convert to fraction form
    153,556.81/211,908.60 = 85,572.29/x
  3. Step 3: Cross multiply
    153,556.81x = 211,908.60 × 85,572.29
  4. Step 4: Simplify right side
    153,556.81x = 18,133,503,907.81
  5. Step 5: Solve for x
    x = 18,133,503,907.81/153,556.81
  6. Step 6: Final answer
    x = 118,089.87

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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.