Home / 141,319.31-195,018.44-77,655.74

Finding the Fourth Proportional to 141,319.31, 195,018.44 and 77,655.74

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Solution

The fourth proportional to 141,319.31, 195,018.44 and 77,655.74 is: 107,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319.31 : 195,018.44 = 77,655.74 : x
  2. Step 2: Convert to fraction form
    141,319.31/195,018.44 = 77,655.74/x
  3. Step 3: Cross multiply
    141,319.31x = 195,018.44 × 77,655.74
  4. Step 4: Simplify right side
    141,319.31x = 15,144,299,908.47
  5. Step 5: Solve for x
    x = 15,144,299,908.47/141,319.31
  6. Step 6: Final answer
    x = 107,163.70

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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.