Home / 134,039.02-185,036.82-77,439.46

Finding the Fourth Proportional to 134,039.02, 185,036.82 and 77,439.46

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Solution

The fourth proportional to 134,039.02, 185,036.82 and 77,439.46 is: 106,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,039.02 : 185,036.82 = 77,439.46 : x
  2. Step 2: Convert to fraction form
    134,039.02/185,036.82 = 77,439.46/x
  3. Step 3: Cross multiply
    134,039.02x = 185,036.82 × 77,439.46
  4. Step 4: Simplify right side
    134,039.02x = 14,329,151,420.92
  5. Step 5: Solve for x
    x = 14,329,151,420.92/134,039.02
  6. Step 6: Final answer
    x = 106,902.84

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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.