Home / 134,639.42-185,800.84-78,056.06

Finding the Fourth Proportional to 134,639.42, 185,800.84 and 78,056.06

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Solution

The fourth proportional to 134,639.42, 185,800.84 and 78,056.06 is: 107,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,639.42 : 185,800.84 = 78,056.06 : x
  2. Step 2: Convert to fraction form
    134,639.42/185,800.84 = 78,056.06/x
  3. Step 3: Cross multiply
    134,639.42x = 185,800.84 × 78,056.06
  4. Step 4: Simplify right side
    134,639.42x = 14,502,880,390.95
  5. Step 5: Solve for x
    x = 14,502,880,390.95/134,639.42
  6. Step 6: Final answer
    x = 107,716.45

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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.