Home / 127,881.10-176,429.64-74,136.52

Finding the Fourth Proportional to 127,881.10, 176,429.64 and 74,136.52

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Solution

The fourth proportional to 127,881.10, 176,429.64 and 74,136.52 is: 102,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,881.10 : 176,429.64 = 74,136.52 : x
  2. Step 2: Convert to fraction form
    127,881.10/176,429.64 = 74,136.52/x
  3. Step 3: Cross multiply
    127,881.10x = 176,429.64 × 74,136.52
  4. Step 4: Simplify right side
    127,881.10x = 13,079,879,534.45
  5. Step 5: Solve for x
    x = 13,079,879,534.45/127,881.10
  6. Step 6: Final answer
    x = 102,281.57

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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.