Home / 170,699.10-235,644.48-99,065.28

Finding the Fourth Proportional to 170,699.10, 235,644.48 and 99,065.28

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Solution

The fourth proportional to 170,699.10, 235,644.48 and 99,065.28 is: 136,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,699.10 : 235,644.48 = 99,065.28 : x
  2. Step 2: Convert to fraction form
    170,699.10/235,644.48 = 99,065.28/x
  3. Step 3: Cross multiply
    170,699.10x = 235,644.48 × 99,065.28
  4. Step 4: Simplify right side
    170,699.10x = 23,344,186,391.65
  5. Step 5: Solve for x
    x = 23,344,186,391.65/170,699.10
  6. Step 6: Final answer
    x = 136,756.35

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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.