Home / 112,137.63-168,206.41-76,970.67

Finding the Fourth Proportional to 112,137.63, 168,206.41 and 76,970.67

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Solution

The fourth proportional to 112,137.63, 168,206.41 and 76,970.67 is: 115,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,137.63 : 168,206.41 = 76,970.67 : x
  2. Step 2: Convert to fraction form
    112,137.63/168,206.41 = 76,970.67/x
  3. Step 3: Cross multiply
    112,137.63x = 168,206.41 × 76,970.67
  4. Step 4: Simplify right side
    112,137.63x = 12,946,960,075.99
  5. Step 5: Solve for x
    x = 12,946,960,075.99/112,137.63
  6. Step 6: Final answer
    x = 115,455.98

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1.5x scale

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.