Home / 180,123.16-248,579.40-103,653.90

Finding the Fourth Proportional to 180,123.16, 248,579.40 and 103,653.90

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Solution

The fourth proportional to 180,123.16, 248,579.40 and 103,653.90 is: 143,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,123.16 : 248,579.40 = 103,653.90 : x
  2. Step 2: Convert to fraction form
    180,123.16/248,579.40 = 103,653.90/x
  3. Step 3: Cross multiply
    180,123.16x = 248,579.40 × 103,653.90
  4. Step 4: Simplify right side
    180,123.16x = 25,766,224,269.66
  5. Step 5: Solve for x
    x = 25,766,224,269.66/180,123.16
  6. Step 6: Final answer
    x = 143,047.81

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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.