Home / 155,011.80-213,961.73-101,305.16

Finding the Fourth Proportional to 155,011.80, 213,961.73 and 101,305.16

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Solution

The fourth proportional to 155,011.80, 213,961.73 and 101,305.16 is: 139,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,011.80 : 213,961.73 = 101,305.16 : x
  2. Step 2: Convert to fraction form
    155,011.80/213,961.73 = 101,305.16/x
  3. Step 3: Cross multiply
    155,011.80x = 213,961.73 × 101,305.16
  4. Step 4: Simplify right side
    155,011.80x = 21,675,425,715.19
  5. Step 5: Solve for x
    x = 21,675,425,715.19/155,011.80
  6. Step 6: Final answer
    x = 139,830.81

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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.