Home / 130,170.75-179,635.76-70,554.75

Finding the Fourth Proportional to 130,170.75, 179,635.76 and 70,554.75

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Solution

The fourth proportional to 130,170.75, 179,635.76 and 70,554.75 is: 97,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170.75 : 179,635.76 = 70,554.75 : x
  2. Step 2: Convert to fraction form
    130,170.75/179,635.76 = 70,554.75/x
  3. Step 3: Cross multiply
    130,170.75x = 179,635.76 × 70,554.75
  4. Step 4: Simplify right side
    130,170.75x = 12,674,156,137.86
  5. Step 5: Solve for x
    x = 12,674,156,137.86/130,170.75
  6. Step 6: Final answer
    x = 97,365.62

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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.