Home / 155,673.95-214,751.57-91,100.75

Finding the Fourth Proportional to 155,673.95, 214,751.57 and 91,100.75

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Solution

The fourth proportional to 155,673.95, 214,751.57 and 91,100.75 is: 125,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,673.95 : 214,751.57 = 91,100.75 : x
  2. Step 2: Convert to fraction form
    155,673.95/214,751.57 = 91,100.75/x
  3. Step 3: Cross multiply
    155,673.95x = 214,751.57 × 91,100.75
  4. Step 4: Simplify right side
    155,673.95x = 19,564,027,561.42
  5. Step 5: Solve for x
    x = 19,564,027,561.42/155,673.95
  6. Step 6: Final answer
    x = 125,673.10

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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.