Home / 149,155.66-205,788.40-84,614.23

Finding the Fourth Proportional to 149,155.66, 205,788.40 and 84,614.23

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Solution

The fourth proportional to 149,155.66, 205,788.40 and 84,614.23 is: 116,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,155.66 : 205,788.40 = 84,614.23 : x
  2. Step 2: Convert to fraction form
    149,155.66/205,788.40 = 84,614.23/x
  3. Step 3: Cross multiply
    149,155.66x = 205,788.40 × 84,614.23
  4. Step 4: Simplify right side
    149,155.66x = 17,412,627,008.93
  5. Step 5: Solve for x
    x = 17,412,627,008.93/149,155.66
  6. Step 6: Final answer
    x = 116,741.31

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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.