Home / 131,518.95-181,496.04-71,089.60

Finding the Fourth Proportional to 131,518.95, 181,496.04 and 71,089.60

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Solution

The fourth proportional to 131,518.95, 181,496.04 and 71,089.60 is: 98,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518.95 : 181,496.04 = 71,089.60 : x
  2. Step 2: Convert to fraction form
    131,518.95/181,496.04 = 71,089.60/x
  3. Step 3: Cross multiply
    131,518.95x = 181,496.04 × 71,089.60
  4. Step 4: Simplify right side
    131,518.95x = 12,902,479,977.70
  5. Step 5: Solve for x
    x = 12,902,479,977.70/131,518.95
  6. Step 6: Final answer
    x = 98,103.58

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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.