Home / 130,511.55-195,767.33-78,023.55

Finding the Fourth Proportional to 130,511.55, 195,767.33 and 78,023.55

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Solution

The fourth proportional to 130,511.55, 195,767.33 and 78,023.55 is: 117,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,511.55 : 195,767.33 = 78,023.55 : x
  2. Step 2: Convert to fraction form
    130,511.55/195,767.33 = 78,023.55/x
  3. Step 3: Cross multiply
    130,511.55x = 195,767.33 × 78,023.55
  4. Step 4: Simplify right side
    130,511.55x = 15,274,461,670.50
  5. Step 5: Solve for x
    x = 15,274,461,670.50/130,511.55
  6. Step 6: Final answer
    x = 117,035.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.