Home / 155,709.81-214,879.53-84,089.84

Finding the Fourth Proportional to 155,709.81, 214,879.53 and 84,089.84

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Solution

The fourth proportional to 155,709.81, 214,879.53 and 84,089.84 is: 116,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,709.81 : 214,879.53 = 84,089.84 : x
  2. Step 2: Convert to fraction form
    155,709.81/214,879.53 = 84,089.84/x
  3. Step 3: Cross multiply
    155,709.81x = 214,879.53 × 84,089.84
  4. Step 4: Simplify right side
    155,709.81x = 18,069,184,222.58
  5. Step 5: Solve for x
    x = 18,069,184,222.58/155,709.81
  6. Step 6: Final answer
    x = 116,043.97

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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.