Home / 108,516.40-162,782.70-38,386.60

Finding the Fourth Proportional to 108,516.40, 162,782.70 and 38,386.60

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Solution

The fourth proportional to 108,516.40, 162,782.70 and 38,386.60 is: 57,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,516.40 : 162,782.70 = 38,386.60 : x
  2. Step 2: Convert to fraction form
    108,516.40/162,782.70 = 38,386.60/x
  3. Step 3: Cross multiply
    108,516.40x = 162,782.70 × 38,386.60
  4. Step 4: Simplify right side
    108,516.40x = 6,248,674,391.82
  5. Step 5: Solve for x
    x = 6,248,674,391.82/108,516.40
  6. Step 6: Final answer
    x = 57,582.77

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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.