Home / 266,130.14-399,078.56-99,801.50

Finding the Fourth Proportional to 266,130.14, 399,078.56 and 99,801.50

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Solution

The fourth proportional to 266,130.14, 399,078.56 and 99,801.50 is: 149,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,130.14 : 399,078.56 = 99,801.50 : x
  2. Step 2: Convert to fraction form
    266,130.14/399,078.56 = 99,801.50/x
  3. Step 3: Cross multiply
    266,130.14x = 399,078.56 × 99,801.50
  4. Step 4: Simplify right side
    266,130.14x = 39,828,638,905.84
  5. Step 5: Solve for x
    x = 39,828,638,905.84/266,130.14
  6. Step 6: Final answer
    x = 149,658.51

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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.