Home / 155,530.45-233,195.23-85,390.93

Finding the Fourth Proportional to 155,530.45, 233,195.23 and 85,390.93

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Solution

The fourth proportional to 155,530.45, 233,195.23 and 85,390.93 is: 128,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,530.45 : 233,195.23 = 85,390.93 : x
  2. Step 2: Convert to fraction form
    155,530.45/233,195.23 = 85,390.93/x
  3. Step 3: Cross multiply
    155,530.45x = 233,195.23 × 85,390.93
  4. Step 4: Simplify right side
    155,530.45x = 19,912,757,561.26
  5. Step 5: Solve for x
    x = 19,912,757,561.26/155,530.45
  6. Step 6: Final answer
    x = 128,031.25

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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.