Home / 145,658.38-201,038.34-91,907.19

Finding the Fourth Proportional to 145,658.38, 201,038.34 and 91,907.19

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Solution

The fourth proportional to 145,658.38, 201,038.34 and 91,907.19 is: 126,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,658.38 : 201,038.34 = 91,907.19 : x
  2. Step 2: Convert to fraction form
    145,658.38/201,038.34 = 91,907.19/x
  3. Step 3: Cross multiply
    145,658.38x = 201,038.34 × 91,907.19
  4. Step 4: Simplify right side
    145,658.38x = 18,476,868,911.66
  5. Step 5: Solve for x
    x = 18,476,868,911.66/145,658.38
  6. Step 6: Final answer
    x = 126,850.71

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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.