Home / 157,823.40-236,637.90-91,230.60

Finding the Fourth Proportional to 157,823.40, 236,637.90 and 91,230.60

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Solution

The fourth proportional to 157,823.40, 236,637.90 and 91,230.60 is: 136,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,823.40 : 236,637.90 = 91,230.60 : x
  2. Step 2: Convert to fraction form
    157,823.40/236,637.90 = 91,230.60/x
  3. Step 3: Cross multiply
    157,823.40x = 236,637.90 × 91,230.60
  4. Step 4: Simplify right side
    157,823.40x = 21,588,617,599.74
  5. Step 5: Solve for x
    x = 21,588,617,599.74/157,823.40
  6. Step 6: Final answer
    x = 136,789.71

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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.