Home / 125,730.52-173,514.43-77,999.24

Finding the Fourth Proportional to 125,730.52, 173,514.43 and 77,999.24

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Solution

The fourth proportional to 125,730.52, 173,514.43 and 77,999.24 is: 107,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,730.52 : 173,514.43 = 77,999.24 : x
  2. Step 2: Convert to fraction form
    125,730.52/173,514.43 = 77,999.24/x
  3. Step 3: Cross multiply
    125,730.52x = 173,514.43 × 77,999.24
  4. Step 4: Simplify right side
    125,730.52x = 13,533,993,907.82
  5. Step 5: Solve for x
    x = 13,533,993,907.82/125,730.52
  6. Step 6: Final answer
    x = 107,642.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.