Home / 141,420.33-195,160.79-77,762.23

Finding the Fourth Proportional to 141,420.33, 195,160.79 and 77,762.23

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Solution

The fourth proportional to 141,420.33, 195,160.79 and 77,762.23 is: 107,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.33 : 195,160.79 = 77,762.23 : x
  2. Step 2: Convert to fraction form
    141,420.33/195,160.79 = 77,762.23/x
  3. Step 3: Cross multiply
    141,420.33x = 195,160.79 × 77,762.23
  4. Step 4: Simplify right side
    141,420.33x = 15,176,138,238.96
  5. Step 5: Solve for x
    x = 15,176,138,238.96/141,420.33
  6. Step 6: Final answer
    x = 107,312.28

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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.