Home / 112,294,157.20-168,441,235.80-68,645,136.40

Finding the Fourth Proportional to 112,294,157.20, 168,441,235.80 and 68,645,136.40

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Solution

The fourth proportional to 112,294,157.20, 168,441,235.80 and 68,645,136.40 is: 102,967,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,294,157.20 : 168,441,235.80 = 68,645,136.40 : x
  2. Step 2: Convert to fraction form
    112,294,157.20/168,441,235.80 = 68,645,136.40/x
  3. Step 3: Cross multiply
    112,294,157.20x = 168,441,235.80 × 68,645,136.40
  4. Step 4: Simplify right side
    112,294,157.20x = 11,562,671,606,875,564
  5. Step 5: Solve for x
    x = 11,562,671,606,875,564/112,294,157.20
  6. Step 6: Final answer
    x = 102,967,704.60

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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.