Home / 141,709.32-195,559.08-78,047.16

Finding the Fourth Proportional to 141,709.32, 195,559.08 and 78,047.16

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Solution

The fourth proportional to 141,709.32, 195,559.08 and 78,047.16 is: 107,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,709.32 : 195,559.08 = 78,047.16 : x
  2. Step 2: Convert to fraction form
    141,709.32/195,559.08 = 78,047.16/x
  3. Step 3: Cross multiply
    141,709.32x = 195,559.08 × 78,047.16
  4. Step 4: Simplify right side
    141,709.32x = 15,262,830,806.21
  5. Step 5: Solve for x
    x = 15,262,830,806.21/141,709.32
  6. Step 6: Final answer
    x = 107,705.20

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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.