Home / 151,712.08-209,374.56-83,742.56

Finding the Fourth Proportional to 151,712.08, 209,374.56 and 83,742.56

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Solution

The fourth proportional to 151,712.08, 209,374.56 and 83,742.56 is: 115,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,712.08 : 209,374.56 = 83,742.56 : x
  2. Step 2: Convert to fraction form
    151,712.08/209,374.56 = 83,742.56/x
  3. Step 3: Cross multiply
    151,712.08x = 209,374.56 × 83,742.56
  4. Step 4: Simplify right side
    151,712.08x = 17,533,561,653.27
  5. Step 5: Solve for x
    x = 17,533,561,653.27/151,712.08
  6. Step 6: Final answer
    x = 115,571.30

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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.