Home / 131,268.07-181,150.85-74,679.45

Finding the Fourth Proportional to 131,268.07, 181,150.85 and 74,679.45

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Solution

The fourth proportional to 131,268.07, 181,150.85 and 74,679.45 is: 103,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,268.07 : 181,150.85 = 74,679.45 : x
  2. Step 2: Convert to fraction form
    131,268.07/181,150.85 = 74,679.45/x
  3. Step 3: Cross multiply
    131,268.07x = 181,150.85 × 74,679.45
  4. Step 4: Simplify right side
    131,268.07x = 13,528,245,845.03
  5. Step 5: Solve for x
    x = 13,528,245,845.03/131,268.07
  6. Step 6: Final answer
    x = 103,058.16

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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.