Home / 141,502.67-195,276.71-77,840.47

Finding the Fourth Proportional to 141,502.67, 195,276.71 and 77,840.47

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Solution

The fourth proportional to 141,502.67, 195,276.71 and 77,840.47 is: 107,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,502.67 : 195,276.71 = 77,840.47 : x
  2. Step 2: Convert to fraction form
    141,502.67/195,276.71 = 77,840.47/x
  3. Step 3: Cross multiply
    141,502.67x = 195,276.71 × 77,840.47
  4. Step 4: Simplify right side
    141,502.67x = 15,200,430,886.45
  5. Step 5: Solve for x
    x = 15,200,430,886.45/141,502.67
  6. Step 6: Final answer
    x = 107,421.51

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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.