Home / 189,402.36-284,029.32-71,009.16

Finding the Fourth Proportional to 189,402.36, 284,029.32 and 71,009.16

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Solution

The fourth proportional to 189,402.36, 284,029.32 and 71,009.16 is: 106,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,402.36 : 284,029.32 = 71,009.16 : x
  2. Step 2: Convert to fraction form
    189,402.36/284,029.32 = 71,009.16/x
  3. Step 3: Cross multiply
    189,402.36x = 284,029.32 × 71,009.16
  4. Step 4: Simplify right side
    189,402.36x = 20,168,683,428.57
  5. Step 5: Solve for x
    x = 20,168,683,428.57/189,402.36
  6. Step 6: Final answer
    x = 106,485.91

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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.