Home / 137,068.40-205,438.08-70,539.92

Finding the Fourth Proportional to 137,068.40, 205,438.08 and 70,539.92

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Solution

The fourth proportional to 137,068.40, 205,438.08 and 70,539.92 is: 105,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,068.40 : 205,438.08 = 70,539.92 : x
  2. Step 2: Convert to fraction form
    137,068.40/205,438.08 = 70,539.92/x
  3. Step 3: Cross multiply
    137,068.40x = 205,438.08 × 70,539.92
  4. Step 4: Simplify right side
    137,068.40x = 14,491,585,728.15
  5. Step 5: Solve for x
    x = 14,491,585,728.15/137,068.40
  6. Step 6: Final answer
    x = 105,725.21

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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.