Home / 109,263.40-163,934.34-42,751.36

Finding the Fourth Proportional to 109,263.40, 163,934.34 and 42,751.36

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Solution

The fourth proportional to 109,263.40, 163,934.34 and 42,751.36 is: 64,142.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,263.40 : 163,934.34 = 42,751.36 : x
  2. Step 2: Convert to fraction form
    109,263.40/163,934.34 = 42,751.36/x
  3. Step 3: Cross multiply
    109,263.40x = 163,934.34 × 42,751.36
  4. Step 4: Simplify right side
    109,263.40x = 7,008,415,985.70
  5. Step 5: Solve for x
    x = 7,008,415,985.70/109,263.40
  6. Step 6: Final answer
    x = 64,142.39

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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.