Home / 127,925.40-191,888.55-39,178.51

Finding the Fourth Proportional to 127,925.40, 191,888.55 and 39,178.51

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Solution

The fourth proportional to 127,925.40, 191,888.55 and 39,178.51 is: 58,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,925.40 : 191,888.55 = 39,178.51 : x
  2. Step 2: Convert to fraction form
    127,925.40/191,888.55 = 39,178.51/x
  3. Step 3: Cross multiply
    127,925.40x = 191,888.55 × 39,178.51
  4. Step 4: Simplify right side
    127,925.40x = 7,517,907,475.06
  5. Step 5: Solve for x
    x = 7,517,907,475.06/127,925.40
  6. Step 6: Final answer
    x = 58,767.90

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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.