Home / 147,331.15-203,318.40-83,669.40

Finding the Fourth Proportional to 147,331.15, 203,318.40 and 83,669.40

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Solution

The fourth proportional to 147,331.15, 203,318.40 and 83,669.40 is: 115,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,331.15 : 203,318.40 = 83,669.40 : x
  2. Step 2: Convert to fraction form
    147,331.15/203,318.40 = 83,669.40/x
  3. Step 3: Cross multiply
    147,331.15x = 203,318.40 × 83,669.40
  4. Step 4: Simplify right side
    147,331.15x = 17,011,528,536.96
  5. Step 5: Solve for x
    x = 17,011,528,536.96/147,331.15
  6. Step 6: Final answer
    x = 115,464.57

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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.