Home / 141,427.51-195,181.05-81,017.62

Finding the Fourth Proportional to 141,427.51, 195,181.05 and 81,017.62

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Solution

The fourth proportional to 141,427.51, 195,181.05 and 81,017.62 is: 111,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,427.51 : 195,181.05 = 81,017.62 : x
  2. Step 2: Convert to fraction form
    141,427.51/195,181.05 = 81,017.62/x
  3. Step 3: Cross multiply
    141,427.51x = 195,181.05 × 81,017.62
  4. Step 4: Simplify right side
    141,427.51x = 15,813,104,140.10
  5. Step 5: Solve for x
    x = 15,813,104,140.10/141,427.51
  6. Step 6: Final answer
    x = 111,810.67

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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.