Home / 155,156.68-214,140.54-91,501.48

Finding the Fourth Proportional to 155,156.68, 214,140.54 and 91,501.48

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Solution

The fourth proportional to 155,156.68, 214,140.54 and 91,501.48 is: 126,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,156.68 : 214,140.54 = 91,501.48 : x
  2. Step 2: Convert to fraction form
    155,156.68/214,140.54 = 91,501.48/x
  3. Step 3: Cross multiply
    155,156.68x = 214,140.54 × 91,501.48
  4. Step 4: Simplify right side
    155,156.68x = 19,594,176,338.00
  5. Step 5: Solve for x
    x = 19,594,176,338.00/155,156.68
  6. Step 6: Final answer
    x = 126,286.39

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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.