Home / 134,503.53-185,607.75-77,139.88

Finding the Fourth Proportional to 134,503.53, 185,607.75 and 77,139.88

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Solution

The fourth proportional to 134,503.53, 185,607.75 and 77,139.88 is: 106,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,503.53 : 185,607.75 = 77,139.88 : x
  2. Step 2: Convert to fraction form
    134,503.53/185,607.75 = 77,139.88/x
  3. Step 3: Cross multiply
    134,503.53x = 185,607.75 × 77,139.88
  4. Step 4: Simplify right side
    134,503.53x = 14,317,759,562.07
  5. Step 5: Solve for x
    x = 14,317,759,562.07/134,503.53
  6. Step 6: Final answer
    x = 106,448.95

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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.