Home / 125,709.12-188,645.76-46,886.40

Finding the Fourth Proportional to 125,709.12, 188,645.76 and 46,886.40

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Solution

The fourth proportional to 125,709.12, 188,645.76 and 46,886.40 is: 70,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,709.12 : 188,645.76 = 46,886.40 : x
  2. Step 2: Convert to fraction form
    125,709.12/188,645.76 = 46,886.40/x
  3. Step 3: Cross multiply
    125,709.12x = 188,645.76 × 46,886.40
  4. Step 4: Simplify right side
    125,709.12x = 8,844,920,561.66
  5. Step 5: Solve for x
    x = 8,844,920,561.66/125,709.12
  6. Step 6: Final answer
    x = 70,360.21

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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.