Home / 86,764.60-130,146.90-72,002.35

Finding the Fourth Proportional to 86,764.60, 130,146.90 and 72,002.35

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Solution

The fourth proportional to 86,764.60, 130,146.90 and 72,002.35 is: 108,003.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,764.60 : 130,146.90 = 72,002.35 : x
  2. Step 2: Convert to fraction form
    86,764.60/130,146.90 = 72,002.35/x
  3. Step 3: Cross multiply
    86,764.60x = 130,146.90 × 72,002.35
  4. Step 4: Simplify right side
    86,764.60x = 9,370,882,645.22
  5. Step 5: Solve for x
    x = 9,370,882,645.22/86,764.60
  6. Step 6: Final answer
    x = 108,003.53

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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.