Home / 112,374.28-168,567.90-42,254.20

Finding the Fourth Proportional to 112,374.28, 168,567.90 and 42,254.20

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Solution

The fourth proportional to 112,374.28, 168,567.90 and 42,254.20 is: 63,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,374.28 : 168,567.90 = 42,254.20 : x
  2. Step 2: Convert to fraction form
    112,374.28/168,567.90 = 42,254.20/x
  3. Step 3: Cross multiply
    112,374.28x = 168,567.90 × 42,254.20
  4. Step 4: Simplify right side
    112,374.28x = 7,122,701,760.18
  5. Step 5: Solve for x
    x = 7,122,701,760.18/112,374.28
  6. Step 6: Final answer
    x = 63,383.74

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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.