Home / 130,055.10-179,627.67-87,546.30

Finding the Fourth Proportional to 130,055.10, 179,627.67 and 87,546.30

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Solution

The fourth proportional to 130,055.10, 179,627.67 and 87,546.30 is: 120,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,055.10 : 179,627.67 = 87,546.30 : x
  2. Step 2: Convert to fraction form
    130,055.10/179,627.67 = 87,546.30/x
  3. Step 3: Cross multiply
    130,055.10x = 179,627.67 × 87,546.30
  4. Step 4: Simplify right side
    130,055.10x = 15,725,737,886.12
  5. Step 5: Solve for x
    x = 15,725,737,886.12/130,055.10
  6. Step 6: Final answer
    x = 120,915.96

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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.