Home / 120,258.81-180,389.43-53,702.33

Finding the Fourth Proportional to 120,258.81, 180,389.43 and 53,702.33

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Solution

The fourth proportional to 120,258.81, 180,389.43 and 53,702.33 is: 80,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,258.81 : 180,389.43 = 53,702.33 : x
  2. Step 2: Convert to fraction form
    120,258.81/180,389.43 = 53,702.33/x
  3. Step 3: Cross multiply
    120,258.81x = 180,389.43 × 53,702.33
  4. Step 4: Simplify right side
    120,258.81x = 9,687,331,796.42
  5. Step 5: Solve for x
    x = 9,687,331,796.42/120,258.81
  6. Step 6: Final answer
    x = 80,554.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.