Home / 130,915.50-180,648.18-73,546.86

Finding the Fourth Proportional to 130,915.50, 180,648.18 and 73,546.86

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Solution

The fourth proportional to 130,915.50, 180,648.18 and 73,546.86 is: 101,486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,915.50 : 180,648.18 = 73,546.86 : x
  2. Step 2: Convert to fraction form
    130,915.50/180,648.18 = 73,546.86/x
  3. Step 3: Cross multiply
    130,915.50x = 180,648.18 × 73,546.86
  4. Step 4: Simplify right side
    130,915.50x = 13,286,106,403.71
  5. Step 5: Solve for x
    x = 13,286,106,403.71/130,915.50
  6. Step 6: Final answer
    x = 101,486.12

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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.