Home / 152,678.02-228,783.49-81,610.78

Finding the Fourth Proportional to 152,678.02, 228,783.49 and 81,610.78

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Solution

The fourth proportional to 152,678.02, 228,783.49 and 81,610.78 is: 122,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,678.02 : 228,783.49 = 81,610.78 : x
  2. Step 2: Convert to fraction form
    152,678.02/228,783.49 = 81,610.78/x
  3. Step 3: Cross multiply
    152,678.02x = 228,783.49 × 81,610.78
  4. Step 4: Simplify right side
    152,678.02x = 18,671,199,070.02
  5. Step 5: Solve for x
    x = 18,671,199,070.02/152,678.02
  6. Step 6: Final answer
    x = 122,291.34

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1.5x scale

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.