Home / 170,305.32-235,243.26-138,159.42

Finding the Fourth Proportional to 170,305.32, 235,243.26 and 138,159.42

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Solution

The fourth proportional to 170,305.32, 235,243.26 and 138,159.42 is: 190,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,305.32 : 235,243.26 = 138,159.42 : x
  2. Step 2: Convert to fraction form
    170,305.32/235,243.26 = 138,159.42/x
  3. Step 3: Cross multiply
    170,305.32x = 235,243.26 × 138,159.42
  4. Step 4: Simplify right side
    170,305.32x = 32,501,072,360.51
  5. Step 5: Solve for x
    x = 32,501,072,360.51/170,305.32
  6. Step 6: Final answer
    x = 190,840.03

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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.