Home / 157,427.20-236,140.80-82,518.40

Finding the Fourth Proportional to 157,427.20, 236,140.80 and 82,518.40

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Solution

The fourth proportional to 157,427.20, 236,140.80 and 82,518.40 is: 123,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.20 : 236,140.80 = 82,518.40 : x
  2. Step 2: Convert to fraction form
    157,427.20/236,140.80 = 82,518.40/x
  3. Step 3: Cross multiply
    157,427.20x = 236,140.80 × 82,518.40
  4. Step 4: Simplify right side
    157,427.20x = 19,485,960,990.72
  5. Step 5: Solve for x
    x = 19,485,960,990.72/157,427.20
  6. Step 6: Final answer
    x = 123,777.60

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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.