Home / 209,558.45-314,399.73-120,875.60

Finding the Fourth Proportional to 209,558.45, 314,399.73 and 120,875.60

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Solution

The fourth proportional to 209,558.45, 314,399.73 and 120,875.60 is: 181,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,558.45 : 314,399.73 = 120,875.60 : x
  2. Step 2: Convert to fraction form
    209,558.45/314,399.73 = 120,875.60/x
  3. Step 3: Cross multiply
    209,558.45x = 314,399.73 × 120,875.60
  4. Step 4: Simplify right side
    209,558.45x = 38,003,254,431.59
  5. Step 5: Solve for x
    x = 38,003,254,431.59/209,558.45
  6. Step 6: Final answer
    x = 181,349.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.