Home / 131,258.90-181,125.60-73,111.19

Finding the Fourth Proportional to 131,258.90, 181,125.60 and 73,111.19

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Solution

The fourth proportional to 131,258.90, 181,125.60 and 73,111.19 is: 100,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,258.90 : 181,125.60 = 73,111.19 : x
  2. Step 2: Convert to fraction form
    131,258.90/181,125.60 = 73,111.19/x
  3. Step 3: Cross multiply
    131,258.90x = 181,125.60 × 73,111.19
  4. Step 4: Simplify right side
    131,258.90x = 13,242,306,975.67
  5. Step 5: Solve for x
    x = 13,242,306,975.67/131,258.90
  6. Step 6: Final answer
    x = 100,886.92

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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.