Home / 131,376.03-181,288.50-85,982.13

Finding the Fourth Proportional to 131,376.03, 181,288.50 and 85,982.13

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Solution

The fourth proportional to 131,376.03, 181,288.50 and 85,982.13 is: 118,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,376.03 : 181,288.50 = 85,982.13 : x
  2. Step 2: Convert to fraction form
    131,376.03/181,288.50 = 85,982.13/x
  3. Step 3: Cross multiply
    131,376.03x = 181,288.50 × 85,982.13
  4. Step 4: Simplify right side
    131,376.03x = 15,587,571,374.51
  5. Step 5: Solve for x
    x = 15,587,571,374.51/131,376.03
  6. Step 6: Final answer
    x = 118,648.52

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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.