Home / 153,721.45-212,103.34-93,323.89

Finding the Fourth Proportional to 153,721.45, 212,103.34 and 93,323.89

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Solution

The fourth proportional to 153,721.45, 212,103.34 and 93,323.89 is: 128,767.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,721.45 : 212,103.34 = 93,323.89 : x
  2. Step 2: Convert to fraction form
    153,721.45/212,103.34 = 93,323.89/x
  3. Step 3: Cross multiply
    153,721.45x = 212,103.34 × 93,323.89
  4. Step 4: Simplify right side
    153,721.45x = 19,794,308,770.79
  5. Step 5: Solve for x
    x = 19,794,308,770.79/153,721.45
  6. Step 6: Final answer
    x = 128,767.38

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1.5x scale

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.