Home / 136,159.04-187,899.36-76,543.04

Finding the Fourth Proportional to 136,159.04, 187,899.36 and 76,543.04

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Solution

The fourth proportional to 136,159.04, 187,899.36 and 76,543.04 is: 105,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,159.04 : 187,899.36 = 76,543.04 : x
  2. Step 2: Convert to fraction form
    136,159.04/187,899.36 = 76,543.04/x
  3. Step 3: Cross multiply
    136,159.04x = 187,899.36 × 76,543.04
  4. Step 4: Simplify right side
    136,159.04x = 14,382,388,228.45
  5. Step 5: Solve for x
    x = 14,382,388,228.45/136,159.04
  6. Step 6: Final answer
    x = 105,629.33

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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.