Home / 151,724.21-209,378.34-83,741.18

Finding the Fourth Proportional to 151,724.21, 209,378.34 and 83,741.18

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Solution

The fourth proportional to 151,724.21, 209,378.34 and 83,741.18 is: 115,562.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,724.21 : 209,378.34 = 83,741.18 : x
  2. Step 2: Convert to fraction form
    151,724.21/209,378.34 = 83,741.18/x
  3. Step 3: Cross multiply
    151,724.21x = 209,378.34 × 83,741.18
  4. Step 4: Simplify right side
    151,724.21x = 17,533,588,211.15
  5. Step 5: Solve for x
    x = 17,533,588,211.15/151,724.21
  6. Step 6: Final answer
    x = 115,562.23

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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.