Home / 153,173.28-211,389.84-89,518.08

Finding the Fourth Proportional to 153,173.28, 211,389.84 and 89,518.08

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Solution

The fourth proportional to 153,173.28, 211,389.84 and 89,518.08 is: 123,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,173.28 : 211,389.84 = 89,518.08 : x
  2. Step 2: Convert to fraction form
    153,173.28/211,389.84 = 89,518.08/x
  3. Step 3: Cross multiply
    153,173.28x = 211,389.84 × 89,518.08
  4. Step 4: Simplify right side
    153,173.28x = 18,923,212,608.31
  5. Step 5: Solve for x
    x = 18,923,212,608.31/153,173.28
  6. Step 6: Final answer
    x = 123,541.21

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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.