Home / 140,756.74-211,109.88-69,656.50

Finding the Fourth Proportional to 140,756.74, 211,109.88 and 69,656.50

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Solution

The fourth proportional to 140,756.74, 211,109.88 and 69,656.50 is: 104,472.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,756.74 : 211,109.88 = 69,656.50 : x
  2. Step 2: Convert to fraction form
    140,756.74/211,109.88 = 69,656.50/x
  3. Step 3: Cross multiply
    140,756.74x = 211,109.88 × 69,656.50
  4. Step 4: Simplify right side
    140,756.74x = 14,705,175,356.22
  5. Step 5: Solve for x
    x = 14,705,175,356.22/140,756.74
  6. Step 6: Final answer
    x = 104,472.26

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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.