Home / 153,922.65-212,411.19-85,940.67

Finding the Fourth Proportional to 153,922.65, 212,411.19 and 85,940.67

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Solution

The fourth proportional to 153,922.65, 212,411.19 and 85,940.67 is: 118,596.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,922.65 : 212,411.19 = 85,940.67 : x
  2. Step 2: Convert to fraction form
    153,922.65/212,411.19 = 85,940.67/x
  3. Step 3: Cross multiply
    153,922.65x = 212,411.19 × 85,940.67
  4. Step 4: Simplify right side
    153,922.65x = 18,254,759,023.37
  5. Step 5: Solve for x
    x = 18,254,759,023.37/153,922.65
  6. Step 6: Final answer
    x = 118,596.96

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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.