Home / 153,939.15-230,921.82-54,090.72

Finding the Fourth Proportional to 153,939.15, 230,921.82 and 54,090.72

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Solution

The fourth proportional to 153,939.15, 230,921.82 and 54,090.72 is: 81,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,939.15 : 230,921.82 = 54,090.72 : x
  2. Step 2: Convert to fraction form
    153,939.15/230,921.82 = 54,090.72/x
  3. Step 3: Cross multiply
    153,939.15x = 230,921.82 × 54,090.72
  4. Step 4: Simplify right side
    153,939.15x = 12,490,727,507.51
  5. Step 5: Solve for x
    x = 12,490,727,507.51/153,939.15
  6. Step 6: Final answer
    x = 81,140.68

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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.