Home / 141,420.45-195,160.19-77,762.37

Finding the Fourth Proportional to 141,420.45, 195,160.19 and 77,762.37

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Solution

The fourth proportional to 141,420.45, 195,160.19 and 77,762.37 is: 107,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.45 : 195,160.19 = 77,762.37 : x
  2. Step 2: Convert to fraction form
    141,420.45/195,160.19 = 77,762.37/x
  3. Step 3: Cross multiply
    141,420.45x = 195,160.19 × 77,762.37
  4. Step 4: Simplify right side
    141,420.45x = 15,176,118,515.24
  5. Step 5: Solve for x
    x = 15,176,118,515.24/141,420.45
  6. Step 6: Final answer
    x = 107,312.05

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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.