Home / 158,725.80-219,047.90-87,108.39

Finding the Fourth Proportional to 158,725.80, 219,047.90 and 87,108.39

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Solution

The fourth proportional to 158,725.80, 219,047.90 and 87,108.39 is: 120,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.80 : 219,047.90 = 87,108.39 : x
  2. Step 2: Convert to fraction form
    158,725.80/219,047.90 = 87,108.39/x
  3. Step 3: Cross multiply
    158,725.80x = 219,047.90 × 87,108.39
  4. Step 4: Simplify right side
    158,725.80x = 19,080,909,466.34
  5. Step 5: Solve for x
    x = 19,080,909,466.34/158,725.80
  6. Step 6: Final answer
    x = 120,213.03

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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.