Home / 108,471.09-162,423.66-87,295.47

Finding the Fourth Proportional to 108,471.09, 162,423.66 and 87,295.47

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Solution

The fourth proportional to 108,471.09, 162,423.66 and 87,295.47 is: 130,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,471.09 : 162,423.66 = 87,295.47 : x
  2. Step 2: Convert to fraction form
    108,471.09/162,423.66 = 87,295.47/x
  3. Step 3: Cross multiply
    108,471.09x = 162,423.66 × 87,295.47
  4. Step 4: Simplify right side
    108,471.09x = 14,178,849,738.82
  5. Step 5: Solve for x
    x = 14,178,849,738.82/108,471.09
  6. Step 6: Final answer
    x = 130,715.47

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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.