Home / 151,460.44-209,015.58-87,835.21

Finding the Fourth Proportional to 151,460.44, 209,015.58 and 87,835.21

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Solution

The fourth proportional to 151,460.44, 209,015.58 and 87,835.21 is: 121,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,460.44 : 209,015.58 = 87,835.21 : x
  2. Step 2: Convert to fraction form
    151,460.44/209,015.58 = 87,835.21/x
  3. Step 3: Cross multiply
    151,460.44x = 209,015.58 × 87,835.21
  4. Step 4: Simplify right side
    151,460.44x = 18,358,927,362.57
  5. Step 5: Solve for x
    x = 18,358,927,362.57/151,460.44
  6. Step 6: Final answer
    x = 121,212.69

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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.