Home / 157,427.60-236,141.40-86,568.80

Finding the Fourth Proportional to 157,427.60, 236,141.40 and 86,568.80

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Solution

The fourth proportional to 157,427.60, 236,141.40 and 86,568.80 is: 129,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.60 : 236,141.40 = 86,568.80 : x
  2. Step 2: Convert to fraction form
    157,427.60/236,141.40 = 86,568.80/x
  3. Step 3: Cross multiply
    157,427.60x = 236,141.40 × 86,568.80
  4. Step 4: Simplify right side
    157,427.60x = 20,442,477,628.32
  5. Step 5: Solve for x
    x = 20,442,477,628.32/157,427.60
  6. Step 6: Final answer
    x = 129,853.20

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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.