Home / 257,101.90-385,901.62-124,075.80

Finding the Fourth Proportional to 257,101.90, 385,901.62 and 124,075.80

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Solution

The fourth proportional to 257,101.90, 385,901.62 and 124,075.80 is: 186,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,101.90 : 385,901.62 = 124,075.80 : x
  2. Step 2: Convert to fraction form
    257,101.90/385,901.62 = 124,075.80/x
  3. Step 3: Cross multiply
    257,101.90x = 385,901.62 × 124,075.80
  4. Step 4: Simplify right side
    257,101.90x = 47,881,051,912.61
  5. Step 5: Solve for x
    x = 47,881,051,912.61/257,101.90
  6. Step 6: Final answer
    x = 186,233.76

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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.