Home / 139,909.58-193,075.48-76,247.36

Finding the Fourth Proportional to 139,909.58, 193,075.48 and 76,247.36

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Solution

The fourth proportional to 139,909.58, 193,075.48 and 76,247.36 is: 105,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,909.58 : 193,075.48 = 76,247.36 : x
  2. Step 2: Convert to fraction form
    139,909.58/193,075.48 = 76,247.36/x
  3. Step 3: Cross multiply
    139,909.58x = 193,075.48 × 76,247.36
  4. Step 4: Simplify right side
    139,909.58x = 14,721,495,630.73
  5. Step 5: Solve for x
    x = 14,721,495,630.73/139,909.58
  6. Step 6: Final answer
    x = 105,221.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.