Home / 108,899.83-163,392-42,386.68

Finding the Fourth Proportional to 108,899.83, 163,392 and 42,386.68

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Solution

The fourth proportional to 108,899.83, 163,392 and 42,386.68 is: 63,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,899.83 : 163,392 = 42,386.68 : x
  2. Step 2: Convert to fraction form
    108,899.83/163,392 = 42,386.68/x
  3. Step 3: Cross multiply
    108,899.83x = 163,392 × 42,386.68
  4. Step 4: Simplify right side
    108,899.83x = 6,925,644,418.56
  5. Step 5: Solve for x
    x = 6,925,644,418.56/108,899.83
  6. Step 6: Final answer
    x = 63,596.47

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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.