Home / 145,741.51-218,675.79-51,039.63

Finding the Fourth Proportional to 145,741.51, 218,675.79 and 51,039.63

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Solution

The fourth proportional to 145,741.51, 218,675.79 and 51,039.63 is: 76,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,741.51 : 218,675.79 = 51,039.63 : x
  2. Step 2: Convert to fraction form
    145,741.51/218,675.79 = 51,039.63/x
  3. Step 3: Cross multiply
    145,741.51x = 218,675.79 × 51,039.63
  4. Step 4: Simplify right side
    145,741.51x = 11,161,130,318.18
  5. Step 5: Solve for x
    x = 11,161,130,318.18/145,741.51
  6. Step 6: Final answer
    x = 76,581.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.