Home / 109,374.03-163,690.56-67,280.76

Finding the Fourth Proportional to 109,374.03, 163,690.56 and 67,280.76

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Solution

The fourth proportional to 109,374.03, 163,690.56 and 67,280.76 is: 100,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,374.03 : 163,690.56 = 67,280.76 : x
  2. Step 2: Convert to fraction form
    109,374.03/163,690.56 = 67,280.76/x
  3. Step 3: Cross multiply
    109,374.03x = 163,690.56 × 67,280.76
  4. Step 4: Simplify right side
    109,374.03x = 11,013,225,281.63
  5. Step 5: Solve for x
    x = 11,013,225,281.63/109,374.03
  6. Step 6: Final answer
    x = 100,693.24

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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.