Home / 145,886.45-201,324.18-81,359.77

Finding the Fourth Proportional to 145,886.45, 201,324.18 and 81,359.77

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Solution

The fourth proportional to 145,886.45, 201,324.18 and 81,359.77 is: 112,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,886.45 : 201,324.18 = 81,359.77 : x
  2. Step 2: Convert to fraction form
    145,886.45/201,324.18 = 81,359.77/x
  3. Step 3: Cross multiply
    145,886.45x = 201,324.18 × 81,359.77
  4. Step 4: Simplify right side
    145,886.45x = 16,379,688,593.29
  5. Step 5: Solve for x
    x = 16,379,688,593.29/145,886.45
  6. Step 6: Final answer
    x = 112,276.97

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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.