Home / 112,590.09-155,384.87-62,305.29

Finding the Fourth Proportional to 112,590.09, 155,384.87 and 62,305.29

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Solution

The fourth proportional to 112,590.09, 155,384.87 and 62,305.29 is: 85,987.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,590.09 : 155,384.87 = 62,305.29 : x
  2. Step 2: Convert to fraction form
    112,590.09/155,384.87 = 62,305.29/x
  3. Step 3: Cross multiply
    112,590.09x = 155,384.87 × 62,305.29
  4. Step 4: Simplify right side
    112,590.09x = 9,681,299,075.44
  5. Step 5: Solve for x
    x = 9,681,299,075.44/112,590.09
  6. Step 6: Final answer
    x = 85,987.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.