Home / 141,502.68-195,276.72-77,840.48

Finding the Fourth Proportional to 141,502.68, 195,276.72 and 77,840.48

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Solution

The fourth proportional to 141,502.68, 195,276.72 and 77,840.48 is: 107,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,502.68 : 195,276.72 = 77,840.48 : x
  2. Step 2: Convert to fraction form
    141,502.68/195,276.72 = 77,840.48/x
  3. Step 3: Cross multiply
    141,502.68x = 195,276.72 × 77,840.48
  4. Step 4: Simplify right side
    141,502.68x = 15,200,433,617.63
  5. Step 5: Solve for x
    x = 15,200,433,617.63/141,502.68
  6. Step 6: Final answer
    x = 107,421.52

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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.