Home / 130,945.04-180,772.48-101,808.80

Finding the Fourth Proportional to 130,945.04, 180,772.48 and 101,808.80

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Solution

The fourth proportional to 130,945.04, 180,772.48 and 101,808.80 is: 140,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.04 : 180,772.48 = 101,808.80 : x
  2. Step 2: Convert to fraction form
    130,945.04/180,772.48 = 101,808.80/x
  3. Step 3: Cross multiply
    130,945.04x = 180,772.48 × 101,808.80
  4. Step 4: Simplify right side
    130,945.04x = 18,404,229,261.82
  5. Step 5: Solve for x
    x = 18,404,229,261.82/130,945.04
  6. Step 6: Final answer
    x = 140,549.27

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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.