Home / 131,291.37-181,182.84-74,702.76

Finding the Fourth Proportional to 131,291.37, 181,182.84 and 74,702.76

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Solution

The fourth proportional to 131,291.37, 181,182.84 and 74,702.76 is: 103,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,291.37 : 181,182.84 = 74,702.76 : x
  2. Step 2: Convert to fraction form
    131,291.37/181,182.84 = 74,702.76/x
  3. Step 3: Cross multiply
    131,291.37x = 181,182.84 × 74,702.76
  4. Step 4: Simplify right side
    131,291.37x = 13,534,858,212.64
  5. Step 5: Solve for x
    x = 13,534,858,212.64/131,291.37
  6. Step 6: Final answer
    x = 103,090.24

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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.