Home / 158,725.86-219,041.07-87,107.10

Finding the Fourth Proportional to 158,725.86, 219,041.07 and 87,107.10

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Solution

The fourth proportional to 158,725.86, 219,041.07 and 87,107.10 is: 120,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.86 : 219,041.07 = 87,107.10 : x
  2. Step 2: Convert to fraction form
    158,725.86/219,041.07 = 87,107.10/x
  3. Step 3: Cross multiply
    158,725.86x = 219,041.07 × 87,107.10
  4. Step 4: Simplify right side
    158,725.86x = 19,080,032,388.60
  5. Step 5: Solve for x
    x = 19,080,032,388.60/158,725.86
  6. Step 6: Final answer
    x = 120,207.46

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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.