Home / 154,778.67-213,515.93-101,095.11

Finding the Fourth Proportional to 154,778.67, 213,515.93 and 101,095.11

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Solution

The fourth proportional to 154,778.67, 213,515.93 and 101,095.11 is: 139,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,778.67 : 213,515.93 = 101,095.11 : x
  2. Step 2: Convert to fraction form
    154,778.67/213,515.93 = 101,095.11/x
  3. Step 3: Cross multiply
    154,778.67x = 213,515.93 × 101,095.11
  4. Step 4: Simplify right side
    154,778.67x = 21,585,416,682.84
  5. Step 5: Solve for x
    x = 21,585,416,682.84/154,778.67
  6. Step 6: Final answer
    x = 139,459.89

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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.