Home / 151,823.61-209,518.26-83,840.49

Finding the Fourth Proportional to 151,823.61, 209,518.26 and 83,840.49

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Solution

The fourth proportional to 151,823.61, 209,518.26 and 83,840.49 is: 115,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,823.61 : 209,518.26 = 83,840.49 : x
  2. Step 2: Convert to fraction form
    151,823.61/209,518.26 = 83,840.49/x
  3. Step 3: Cross multiply
    151,823.61x = 209,518.26 × 83,840.49
  4. Step 4: Simplify right side
    151,823.61x = 17,566,113,582.35
  5. Step 5: Solve for x
    x = 17,566,113,582.35/151,823.61
  6. Step 6: Final answer
    x = 115,700.80

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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.