Home / 155,855.03-215,158.16-102,222.23

Finding the Fourth Proportional to 155,855.03, 215,158.16 and 102,222.23

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Solution

The fourth proportional to 155,855.03, 215,158.16 and 102,222.23 is: 141,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,855.03 : 215,158.16 = 102,222.23 : x
  2. Step 2: Convert to fraction form
    155,855.03/215,158.16 = 102,222.23/x
  3. Step 3: Cross multiply
    155,855.03x = 215,158.16 × 102,222.23
  4. Step 4: Simplify right side
    155,855.03x = 21,993,946,406.79
  5. Step 5: Solve for x
    x = 21,993,946,406.79/155,855.03
  6. Step 6: Final answer
    x = 141,117.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.