Home / 130,842.48-180,568.16-74,259.12

Finding the Fourth Proportional to 130,842.48, 180,568.16 and 74,259.12

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Solution

The fourth proportional to 130,842.48, 180,568.16 and 74,259.12 is: 102,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,842.48 : 180,568.16 = 74,259.12 : x
  2. Step 2: Convert to fraction form
    130,842.48/180,568.16 = 74,259.12/x
  3. Step 3: Cross multiply
    130,842.48x = 180,568.16 × 74,259.12
  4. Step 4: Simplify right side
    130,842.48x = 13,408,832,661.62
  5. Step 5: Solve for x
    x = 13,408,832,661.62/130,842.48
  6. Step 6: Final answer
    x = 102,480.73

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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.