Home / 130,767.30-180,453.42-74,189.34

Finding the Fourth Proportional to 130,767.30, 180,453.42 and 74,189.34

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Solution

The fourth proportional to 130,767.30, 180,453.42 and 74,189.34 is: 102,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,767.30 : 180,453.42 = 74,189.34 : x
  2. Step 2: Convert to fraction form
    130,767.30/180,453.42 = 74,189.34/x
  3. Step 3: Cross multiply
    130,767.30x = 180,453.42 × 74,189.34
  4. Step 4: Simplify right side
    130,767.30x = 13,387,720,130.54
  5. Step 5: Solve for x
    x = 13,387,720,130.54/130,767.30
  6. Step 6: Final answer
    x = 102,378.19

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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.