Home / 98,721.36-136,093.77-70,377.84

Finding the Fourth Proportional to 98,721.36, 136,093.77 and 70,377.84

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Solution

The fourth proportional to 98,721.36, 136,093.77 and 70,377.84 is: 97,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,721.36 : 136,093.77 = 70,377.84 : x
  2. Step 2: Convert to fraction form
    98,721.36/136,093.77 = 70,377.84/x
  3. Step 3: Cross multiply
    98,721.36x = 136,093.77 × 70,377.84
  4. Step 4: Simplify right side
    98,721.36x = 9,577,985,570.06
  5. Step 5: Solve for x
    x = 9,577,985,570.06/98,721.36
  6. Step 6: Final answer
    x = 97,020.40

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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.