Home / 157,300.40-236,104.20-78,503.60

Finding the Fourth Proportional to 157,300.40, 236,104.20 and 78,503.60

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Solution

The fourth proportional to 157,300.40, 236,104.20 and 78,503.60 is: 117,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,300.40 : 236,104.20 = 78,503.60 : x
  2. Step 2: Convert to fraction form
    157,300.40/236,104.20 = 78,503.60/x
  3. Step 3: Cross multiply
    157,300.40x = 236,104.20 × 78,503.60
  4. Step 4: Simplify right side
    157,300.40x = 18,535,029,675.12
  5. Step 5: Solve for x
    x = 18,535,029,675.12/157,300.40
  6. Step 6: Final answer
    x = 117,832.06

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1.5x scale

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.