Home / 138,975.89-191,852.84-93,114.50

Finding the Fourth Proportional to 138,975.89, 191,852.84 and 93,114.50

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Solution

The fourth proportional to 138,975.89, 191,852.84 and 93,114.50 is: 128,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,975.89 : 191,852.84 = 93,114.50 : x
  2. Step 2: Convert to fraction form
    138,975.89/191,852.84 = 93,114.50/x
  3. Step 3: Cross multiply
    138,975.89x = 191,852.84 × 93,114.50
  4. Step 4: Simplify right side
    138,975.89x = 17,864,279,845.34
  5. Step 5: Solve for x
    x = 17,864,279,845.34/138,975.89
  6. Step 6: Final answer
    x = 128,542.30

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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.