Home / 146,555.42-202,235.01-86,128.34

Finding the Fourth Proportional to 146,555.42, 202,235.01 and 86,128.34

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Solution

The fourth proportional to 146,555.42, 202,235.01 and 86,128.34 is: 118,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,555.42 : 202,235.01 = 86,128.34 : x
  2. Step 2: Convert to fraction form
    146,555.42/202,235.01 = 86,128.34/x
  3. Step 3: Cross multiply
    146,555.42x = 202,235.01 × 86,128.34
  4. Step 4: Simplify right side
    146,555.42x = 17,418,165,701.18
  5. Step 5: Solve for x
    x = 17,418,165,701.18/146,555.42
  6. Step 6: Final answer
    x = 118,850.37

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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.