Home / 112,535.80-168,803.70-73,137.40

Finding the Fourth Proportional to 112,535.80, 168,803.70 and 73,137.40

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Solution

The fourth proportional to 112,535.80, 168,803.70 and 73,137.40 is: 109,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,535.80 : 168,803.70 = 73,137.40 : x
  2. Step 2: Convert to fraction form
    112,535.80/168,803.70 = 73,137.40/x
  3. Step 3: Cross multiply
    112,535.80x = 168,803.70 × 73,137.40
  4. Step 4: Simplify right side
    112,535.80x = 12,345,863,728.38
  5. Step 5: Solve for x
    x = 12,345,863,728.38/112,535.80
  6. Step 6: Final answer
    x = 109,706.10

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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.