Home / 210,657.25-290,669.64-124,619.86

Finding the Fourth Proportional to 210,657.25, 290,669.64 and 124,619.86

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Solution

The fourth proportional to 210,657.25, 290,669.64 and 124,619.86 is: 171,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,657.25 : 290,669.64 = 124,619.86 : x
  2. Step 2: Convert to fraction form
    210,657.25/290,669.64 = 124,619.86/x
  3. Step 3: Cross multiply
    210,657.25x = 290,669.64 × 124,619.86
  4. Step 4: Simplify right side
    210,657.25x = 36,223,208,649.05
  5. Step 5: Solve for x
    x = 36,223,208,649.05/210,657.25
  6. Step 6: Final answer
    x = 171,953.30

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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.