Home / 158,335.08-218,502.75-85,738.77

Finding the Fourth Proportional to 158,335.08, 218,502.75 and 85,738.77

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Solution

The fourth proportional to 158,335.08, 218,502.75 and 85,738.77 is: 118,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,335.08 : 218,502.75 = 85,738.77 : x
  2. Step 2: Convert to fraction form
    158,335.08/218,502.75 = 85,738.77/x
  3. Step 3: Cross multiply
    158,335.08x = 218,502.75 × 85,738.77
  4. Step 4: Simplify right side
    158,335.08x = 18,734,157,026.62
  5. Step 5: Solve for x
    x = 18,734,157,026.62/158,335.08
  6. Step 6: Final answer
    x = 118,319.69

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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.