Home / 127,924.90-191,870.55-39,187.30

Finding the Fourth Proportional to 127,924.90, 191,870.55 and 39,187.30

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Solution

The fourth proportional to 127,924.90, 191,870.55 and 39,187.30 is: 58,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,924.90 : 191,870.55 = 39,187.30 : x
  2. Step 2: Convert to fraction form
    127,924.90/191,870.55 = 39,187.30/x
  3. Step 3: Cross multiply
    127,924.90x = 191,870.55 × 39,187.30
  4. Step 4: Simplify right side
    127,924.90x = 7,518,888,804.02
  5. Step 5: Solve for x
    x = 7,518,888,804.02/127,924.90
  6. Step 6: Final answer
    x = 58,775.80

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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.