Home / 137,316.90-205,716.15-70,529.70

Finding the Fourth Proportional to 137,316.90, 205,716.15 and 70,529.70

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Solution

The fourth proportional to 137,316.90, 205,716.15 and 70,529.70 is: 105,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,316.90 : 205,716.15 = 70,529.70 : x
  2. Step 2: Convert to fraction form
    137,316.90/205,716.15 = 70,529.70/x
  3. Step 3: Cross multiply
    137,316.90x = 205,716.15 × 70,529.70
  4. Step 4: Simplify right side
    137,316.90x = 14,509,098,344.66
  5. Step 5: Solve for x
    x = 14,509,098,344.66/137,316.90
  6. Step 6: Final answer
    x = 105,661.42

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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.