Home / 171,621.10-257,431.65-142,461.10

Finding the Fourth Proportional to 171,621.10, 257,431.65 and 142,461.10

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Solution

The fourth proportional to 171,621.10, 257,431.65 and 142,461.10 is: 213,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,621.10 : 257,431.65 = 142,461.10 : x
  2. Step 2: Convert to fraction form
    171,621.10/257,431.65 = 142,461.10/x
  3. Step 3: Cross multiply
    171,621.10x = 257,431.65 × 142,461.10
  4. Step 4: Simplify right side
    171,621.10x = 36,673,996,033.82
  5. Step 5: Solve for x
    x = 36,673,996,033.82/171,621.10
  6. Step 6: Final answer
    x = 213,691.65

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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.