Home / 141,313.10-195,009.86-77,649.53

Finding the Fourth Proportional to 141,313.10, 195,009.86 and 77,649.53

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Solution

The fourth proportional to 141,313.10, 195,009.86 and 77,649.53 is: 107,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.10 : 195,009.86 = 77,649.53 : x
  2. Step 2: Convert to fraction form
    141,313.10/195,009.86 = 77,649.53/x
  3. Step 3: Cross multiply
    141,313.10x = 195,009.86 × 77,649.53
  4. Step 4: Simplify right side
    141,313.10x = 15,142,422,611.07
  5. Step 5: Solve for x
    x = 15,142,422,611.07/141,313.10
  6. Step 6: Final answer
    x = 107,155.13

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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.