Home / 102,621.60-153,932.40-47,325.60

Finding the Fourth Proportional to 102,621.60, 153,932.40 and 47,325.60

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Solution

The fourth proportional to 102,621.60, 153,932.40 and 47,325.60 is: 70,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621.60 : 153,932.40 = 47,325.60 : x
  2. Step 2: Convert to fraction form
    102,621.60/153,932.40 = 47,325.60/x
  3. Step 3: Cross multiply
    102,621.60x = 153,932.40 × 47,325.60
  4. Step 4: Simplify right side
    102,621.60x = 7,284,943,189.44
  5. Step 5: Solve for x
    x = 7,284,943,189.44/102,621.60
  6. Step 6: Final answer
    x = 70,988.40

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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.