Home / 153,556.89-211,908.71-85,572.38

Finding the Fourth Proportional to 153,556.89, 211,908.71 and 85,572.38

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Solution

The fourth proportional to 153,556.89, 211,908.71 and 85,572.38 is: 118,089.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,556.89 : 211,908.71 = 85,572.38 : x
  2. Step 2: Convert to fraction form
    153,556.89/211,908.71 = 85,572.38/x
  3. Step 3: Cross multiply
    153,556.89x = 211,908.71 × 85,572.38
  4. Step 4: Simplify right side
    153,556.89x = 18,133,531,811.82
  5. Step 5: Solve for x
    x = 18,133,531,811.82/153,556.89
  6. Step 6: Final answer
    x = 118,089.99

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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.