Home / 141,549.65-195,316.21-81,108.67

Finding the Fourth Proportional to 141,549.65, 195,316.21 and 81,108.67

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Solution

The fourth proportional to 141,549.65, 195,316.21 and 81,108.67 is: 111,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,549.65 : 195,316.21 = 81,108.67 : x
  2. Step 2: Convert to fraction form
    141,549.65/195,316.21 = 81,108.67/x
  3. Step 3: Cross multiply
    141,549.65x = 195,316.21 × 81,108.67
  4. Step 4: Simplify right side
    141,549.65x = 15,841,838,022.54
  5. Step 5: Solve for x
    x = 15,841,838,022.54/141,549.65
  6. Step 6: Final answer
    x = 111,917.18

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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.