Home / 102,970.30-154,261.05-52,879.90

Finding the Fourth Proportional to 102,970.30, 154,261.05 and 52,879.90

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Solution

The fourth proportional to 102,970.30, 154,261.05 and 52,879.90 is: 79,220.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,970.30 : 154,261.05 = 52,879.90 : x
  2. Step 2: Convert to fraction form
    102,970.30/154,261.05 = 52,879.90/x
  3. Step 3: Cross multiply
    102,970.30x = 154,261.05 × 52,879.90
  4. Step 4: Simplify right side
    102,970.30x = 8,157,308,897.90
  5. Step 5: Solve for x
    x = 8,157,308,897.90/102,970.30
  6. Step 6: Final answer
    x = 79,220.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.