Home / 257,156.20-385,815.90-124,048.36

Finding the Fourth Proportional to 257,156.20, 385,815.90 and 124,048.36

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Solution

The fourth proportional to 257,156.20, 385,815.90 and 124,048.36 is: 186,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,156.20 : 385,815.90 = 124,048.36 : x
  2. Step 2: Convert to fraction form
    257,156.20/385,815.90 = 124,048.36/x
  3. Step 3: Cross multiply
    257,156.20x = 385,815.90 × 124,048.36
  4. Step 4: Simplify right side
    257,156.20x = 47,859,829,656.92
  5. Step 5: Solve for x
    x = 47,859,829,656.92/257,156.20
  6. Step 6: Final answer
    x = 186,111.90

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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.