Home / 121,025.60-181,408.80-54,454.40

Finding the Fourth Proportional to 121,025.60, 181,408.80 and 54,454.40

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Solution

The fourth proportional to 121,025.60, 181,408.80 and 54,454.40 is: 81,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,025.60 : 181,408.80 = 54,454.40 : x
  2. Step 2: Convert to fraction form
    121,025.60/181,408.80 = 54,454.40/x
  3. Step 3: Cross multiply
    121,025.60x = 181,408.80 × 54,454.40
  4. Step 4: Simplify right side
    121,025.60x = 9,878,507,358.72
  5. Step 5: Solve for x
    x = 9,878,507,358.72/121,025.60
  6. Step 6: Final answer
    x = 81,623.29

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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.