Home / 139,352.63-209,033.28-66,306.57

Finding the Fourth Proportional to 139,352.63, 209,033.28 and 66,306.57

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Solution

The fourth proportional to 139,352.63, 209,033.28 and 66,306.57 is: 99,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,352.63 : 209,033.28 = 66,306.57 : x
  2. Step 2: Convert to fraction form
    139,352.63/209,033.28 = 66,306.57/x
  3. Step 3: Cross multiply
    139,352.63x = 209,033.28 × 66,306.57
  4. Step 4: Simplify right side
    139,352.63x = 13,860,280,335.23
  5. Step 5: Solve for x
    x = 13,860,280,335.23/139,352.63
  6. Step 6: Final answer
    x = 99,461.92

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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.