Home / 155,729.52-214,906.80-84,109.52

Finding the Fourth Proportional to 155,729.52, 214,906.80 and 84,109.52

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Solution

The fourth proportional to 155,729.52, 214,906.80 and 84,109.52 is: 116,071.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,729.52 : 214,906.80 = 84,109.52 : x
  2. Step 2: Convert to fraction form
    155,729.52/214,906.80 = 84,109.52/x
  3. Step 3: Cross multiply
    155,729.52x = 214,906.80 × 84,109.52
  4. Step 4: Simplify right side
    155,729.52x = 18,075,707,792.74
  5. Step 5: Solve for x
    x = 18,075,707,792.74/155,729.52
  6. Step 6: Final answer
    x = 116,071.17

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1.5x scale

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.