Home / 130,533.45-180,043.99-111,102.69

Finding the Fourth Proportional to 130,533.45, 180,043.99 and 111,102.69

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Solution

The fourth proportional to 130,533.45, 180,043.99 and 111,102.69 is: 153,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.45 : 180,043.99 = 111,102.69 : x
  2. Step 2: Convert to fraction form
    130,533.45/180,043.99 = 111,102.69/x
  3. Step 3: Cross multiply
    130,533.45x = 180,043.99 × 111,102.69
  4. Step 4: Simplify right side
    130,533.45x = 20,003,371,607.33
  5. Step 5: Solve for x
    x = 20,003,371,607.33/130,533.45
  6. Step 6: Final answer
    x = 153,243.26

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1.5x scale

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.