Home / 130,629.27-180,099.20-84,607.04

Finding the Fourth Proportional to 130,629.27, 180,099.20 and 84,607.04

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Solution

The fourth proportional to 130,629.27, 180,099.20 and 84,607.04 is: 116,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,629.27 : 180,099.20 = 84,607.04 : x
  2. Step 2: Convert to fraction form
    130,629.27/180,099.20 = 84,607.04/x
  3. Step 3: Cross multiply
    130,629.27x = 180,099.20 × 84,607.04
  4. Step 4: Simplify right side
    130,629.27x = 15,237,658,894.84
  5. Step 5: Solve for x
    x = 15,237,658,894.84/130,629.27
  6. Step 6: Final answer
    x = 116,648.12

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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.