Home / 127,923.90-191,869.05-39,186.30

Finding the Fourth Proportional to 127,923.90, 191,869.05 and 39,186.30

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Solution

The fourth proportional to 127,923.90, 191,869.05 and 39,186.30 is: 58,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,923.90 : 191,869.05 = 39,186.30 : x
  2. Step 2: Convert to fraction form
    127,923.90/191,869.05 = 39,186.30/x
  3. Step 3: Cross multiply
    127,923.90x = 191,869.05 × 39,186.30
  4. Step 4: Simplify right side
    127,923.90x = 7,518,638,154.02
  5. Step 5: Solve for x
    x = 7,518,638,154.02/127,923.90
  6. Step 6: Final answer
    x = 58,774.30

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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.