Home / 141,838.40-195,741.36-81,420.08

Finding the Fourth Proportional to 141,838.40, 195,741.36 and 81,420.08

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Solution

The fourth proportional to 141,838.40, 195,741.36 and 81,420.08 is: 112,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,838.40 : 195,741.36 = 81,420.08 : x
  2. Step 2: Convert to fraction form
    141,838.40/195,741.36 = 81,420.08/x
  3. Step 3: Cross multiply
    141,838.40x = 195,741.36 × 81,420.08
  4. Step 4: Simplify right side
    141,838.40x = 15,937,277,190.51
  5. Step 5: Solve for x
    x = 15,937,277,190.51/141,838.40
  6. Step 6: Final answer
    x = 112,362.22

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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.