Home / 257,080.04-385,615.92-70,091.54

Finding the Fourth Proportional to 257,080.04, 385,615.92 and 70,091.54

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Solution

The fourth proportional to 257,080.04, 385,615.92 and 70,091.54 is: 105,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,080.04 : 385,615.92 = 70,091.54 : x
  2. Step 2: Convert to fraction form
    257,080.04/385,615.92 = 70,091.54/x
  3. Step 3: Cross multiply
    257,080.04x = 385,615.92 × 70,091.54
  4. Step 4: Simplify right side
    257,080.04x = 27,028,413,681.32
  5. Step 5: Solve for x
    x = 27,028,413,681.32/257,080.04
  6. Step 6: Final answer
    x = 105,136.18

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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.