Home / 571,389.72-857,075.04-139,111.74

Finding the Fourth Proportional to 571,389.72, 857,075.04 and 139,111.74

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Solution

The fourth proportional to 571,389.72, 857,075.04 and 139,111.74 is: 208,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,389.72 : 857,075.04 = 139,111.74 : x
  2. Step 2: Convert to fraction form
    571,389.72/857,075.04 = 139,111.74/x
  3. Step 3: Cross multiply
    571,389.72x = 857,075.04 × 139,111.74
  4. Step 4: Simplify right side
    571,389.72x = 119,229,200,124.97
  5. Step 5: Solve for x
    x = 119,229,200,124.97/571,389.72
  6. Step 6: Final answer
    x = 208,665.29

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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.