Home / 98,722.86-136,095.84-70,379.34

Finding the Fourth Proportional to 98,722.86, 136,095.84 and 70,379.34

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Solution

The fourth proportional to 98,722.86, 136,095.84 and 70,379.34 is: 97,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,722.86 : 136,095.84 = 70,379.34 : x
  2. Step 2: Convert to fraction form
    98,722.86/136,095.84 = 70,379.34/x
  3. Step 3: Cross multiply
    98,722.86x = 136,095.84 × 70,379.34
  4. Step 4: Simplify right side
    98,722.86x = 9,578,335,395.95
  5. Step 5: Solve for x
    x = 9,578,335,395.95/98,722.86
  6. Step 6: Final answer
    x = 97,022.47

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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.