Home / 141,354.90-195,082.23-77,705.10

Finding the Fourth Proportional to 141,354.90, 195,082.23 and 77,705.10

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Solution

The fourth proportional to 141,354.90, 195,082.23 and 77,705.10 is: 107,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,354.90 : 195,082.23 = 77,705.10 : x
  2. Step 2: Convert to fraction form
    141,354.90/195,082.23 = 77,705.10/x
  3. Step 3: Cross multiply
    141,354.90x = 195,082.23 × 77,705.10
  4. Step 4: Simplify right side
    141,354.90x = 15,158,884,190.37
  5. Step 5: Solve for x
    x = 15,158,884,190.37/141,354.90
  6. Step 6: Final answer
    x = 107,239.89

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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.