Home / 130,685.64-180,401.25-88,301.58

Finding the Fourth Proportional to 130,685.64, 180,401.25 and 88,301.58

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Solution

The fourth proportional to 130,685.64, 180,401.25 and 88,301.58 is: 121,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,685.64 : 180,401.25 = 88,301.58 : x
  2. Step 2: Convert to fraction form
    130,685.64/180,401.25 = 88,301.58/x
  3. Step 3: Cross multiply
    130,685.64x = 180,401.25 × 88,301.58
  4. Step 4: Simplify right side
    130,685.64x = 15,929,715,408.98
  5. Step 5: Solve for x
    x = 15,929,715,408.98/130,685.64
  6. Step 6: Final answer
    x = 121,893.39

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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.