Home / 189,448.70-284,501.10-100,875.20

Finding the Fourth Proportional to 189,448.70, 284,501.10 and 100,875.20

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Solution

The fourth proportional to 189,448.70, 284,501.10 and 100,875.20 is: 151,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,448.70 : 284,501.10 = 100,875.20 : x
  2. Step 2: Convert to fraction form
    189,448.70/284,501.10 = 100,875.20/x
  3. Step 3: Cross multiply
    189,448.70x = 284,501.10 × 100,875.20
  4. Step 4: Simplify right side
    189,448.70x = 28,699,105,362.72
  5. Step 5: Solve for x
    x = 28,699,105,362.72/189,448.70
  6. Step 6: Final answer
    x = 151,487.48

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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.