Home / 139,702.08-209,549.28-34,518.72

Finding the Fourth Proportional to 139,702.08, 209,549.28 and 34,518.72

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Solution

The fourth proportional to 139,702.08, 209,549.28 and 34,518.72 is: 51,777.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,702.08 : 209,549.28 = 34,518.72 : x
  2. Step 2: Convert to fraction form
    139,702.08/209,549.28 = 34,518.72/x
  3. Step 3: Cross multiply
    139,702.08x = 209,549.28 × 34,518.72
  4. Step 4: Simplify right side
    139,702.08x = 7,233,372,922.52
  5. Step 5: Solve for x
    x = 7,233,372,922.52/139,702.08
  6. Step 6: Final answer
    x = 51,777.13

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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.