Home / 104,832.80-157,076.40-87,207.20

Finding the Fourth Proportional to 104,832.80, 157,076.40 and 87,207.20

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Solution

The fourth proportional to 104,832.80, 157,076.40 and 87,207.20 is: 130,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,832.80 : 157,076.40 = 87,207.20 : x
  2. Step 2: Convert to fraction form
    104,832.80/157,076.40 = 87,207.20/x
  3. Step 3: Cross multiply
    104,832.80x = 157,076.40 × 87,207.20
  4. Step 4: Simplify right side
    104,832.80x = 13,698,193,030.08
  5. Step 5: Solve for x
    x = 13,698,193,030.08/104,832.80
  6. Step 6: Final answer
    x = 130,667.05

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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.