Home / 151,457.78-209,011.74-87,832.46

Finding the Fourth Proportional to 151,457.78, 209,011.74 and 87,832.46

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Solution

The fourth proportional to 151,457.78, 209,011.74 and 87,832.46 is: 121,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,457.78 : 209,011.74 = 87,832.46 : x
  2. Step 2: Convert to fraction form
    151,457.78/209,011.74 = 87,832.46/x
  3. Step 3: Cross multiply
    151,457.78x = 209,011.74 × 87,832.46
  4. Step 4: Simplify right side
    151,457.78x = 18,358,015,293.08
  5. Step 5: Solve for x
    x = 18,358,015,293.08/151,457.78
  6. Step 6: Final answer
    x = 121,208.80

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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.