Home / 257,496.30-386,135.10-124,417.35

Finding the Fourth Proportional to 257,496.30, 386,135.10 and 124,417.35

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Solution

The fourth proportional to 257,496.30, 386,135.10 and 124,417.35 is: 186,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,496.30 : 386,135.10 = 124,417.35 : x
  2. Step 2: Convert to fraction form
    257,496.30/386,135.10 = 124,417.35/x
  3. Step 3: Cross multiply
    257,496.30x = 386,135.10 × 124,417.35
  4. Step 4: Simplify right side
    257,496.30x = 48,041,905,883.99
  5. Step 5: Solve for x
    x = 48,041,905,883.99/257,496.30
  6. Step 6: Final answer
    x = 186,573.19

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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.