Home / 141,420.96-195,160.32-77,762.16

Finding the Fourth Proportional to 141,420.96, 195,160.32 and 77,762.16

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Solution

The fourth proportional to 141,420.96, 195,160.32 and 77,762.16 is: 107,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.96 : 195,160.32 = 77,762.16 : x
  2. Step 2: Convert to fraction form
    141,420.96/195,160.32 = 77,762.16/x
  3. Step 3: Cross multiply
    141,420.96x = 195,160.32 × 77,762.16
  4. Step 4: Simplify right side
    141,420.96x = 15,176,088,029.49
  5. Step 5: Solve for x
    x = 15,176,088,029.49/141,420.96
  6. Step 6: Final answer
    x = 107,311.45

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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.