Home / 141,821.69-212,762.77-70,782.53

Finding the Fourth Proportional to 141,821.69, 212,762.77 and 70,782.53

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Solution

The fourth proportional to 141,821.69, 212,762.77 and 70,782.53 is: 106,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.69 : 212,762.77 = 70,782.53 : x
  2. Step 2: Convert to fraction form
    141,821.69/212,762.77 = 70,782.53/x
  3. Step 3: Cross multiply
    141,821.69x = 212,762.77 × 70,782.53
  4. Step 4: Simplify right side
    141,821.69x = 15,059,885,909.64
  5. Step 5: Solve for x
    x = 15,059,885,909.64/141,821.69
  6. Step 6: Final answer
    x = 106,188.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.