Home / 145,817.48-201,227.46-81,285.86

Finding the Fourth Proportional to 145,817.48, 201,227.46 and 81,285.86

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Solution

The fourth proportional to 145,817.48, 201,227.46 and 81,285.86 is: 112,174.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,817.48 : 201,227.46 = 81,285.86 : x
  2. Step 2: Convert to fraction form
    145,817.48/201,227.46 = 81,285.86/x
  3. Step 3: Cross multiply
    145,817.48x = 201,227.46 × 81,285.86
  4. Step 4: Simplify right side
    145,817.48x = 16,356,947,141.72
  5. Step 5: Solve for x
    x = 16,356,947,141.72/145,817.48
  6. Step 6: Final answer
    x = 112,174.12

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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.