Home / 141,621.06-195,438.78-77,963.16

Finding the Fourth Proportional to 141,621.06, 195,438.78 and 77,963.16

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Solution

The fourth proportional to 141,621.06, 195,438.78 and 77,963.16 is: 107,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,621.06 : 195,438.78 = 77,963.16 : x
  2. Step 2: Convert to fraction form
    141,621.06/195,438.78 = 77,963.16/x
  3. Step 3: Cross multiply
    141,621.06x = 195,438.78 × 77,963.16
  4. Step 4: Simplify right side
    141,621.06x = 15,237,024,875.34
  5. Step 5: Solve for x
    x = 15,237,024,875.34/141,621.06
  6. Step 6: Final answer
    x = 107,590.11

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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.