Home / 131,421.54-181,361.58-70,992.15

Finding the Fourth Proportional to 131,421.54, 181,361.58 and 70,992.15

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Solution

The fourth proportional to 131,421.54, 181,361.58 and 70,992.15 is: 97,969.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.54 : 181,361.58 = 70,992.15 : x
  2. Step 2: Convert to fraction form
    131,421.54/181,361.58 = 70,992.15/x
  3. Step 3: Cross multiply
    131,421.54x = 181,361.58 × 70,992.15
  4. Step 4: Simplify right side
    131,421.54x = 12,875,247,944.60
  5. Step 5: Solve for x
    x = 12,875,247,944.60/131,421.54
  6. Step 6: Final answer
    x = 97,969.09

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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.