Home / 125,211.72-187,686.36-46,275.60

Finding the Fourth Proportional to 125,211.72, 187,686.36 and 46,275.60

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Solution

The fourth proportional to 125,211.72, 187,686.36 and 46,275.60 is: 69,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,211.72 : 187,686.36 = 46,275.60 : x
  2. Step 2: Convert to fraction form
    125,211.72/187,686.36 = 46,275.60/x
  3. Step 3: Cross multiply
    125,211.72x = 187,686.36 × 46,275.60
  4. Step 4: Simplify right side
    125,211.72x = 8,685,298,920.82
  5. Step 5: Solve for x
    x = 8,685,298,920.82/125,211.72
  6. Step 6: Final answer
    x = 69,364.90

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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.