Home / 141,420.60-195,161.13-77,762.48

Finding the Fourth Proportional to 141,420.60, 195,161.13 and 77,762.48

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Solution

The fourth proportional to 141,420.60, 195,161.13 and 77,762.48 is: 107,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.60 : 195,161.13 = 77,762.48 : x
  2. Step 2: Convert to fraction form
    141,420.60/195,161.13 = 77,762.48/x
  3. Step 3: Cross multiply
    141,420.60x = 195,161.13 × 77,762.48
  4. Step 4: Simplify right side
    141,420.60x = 15,176,212,492.60
  5. Step 5: Solve for x
    x = 15,176,212,492.60/141,420.60
  6. Step 6: Final answer
    x = 107,312.60

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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.