Home / 123,474.24-185,211.36-86,702.40

Finding the Fourth Proportional to 123,474.24, 185,211.36 and 86,702.40

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Solution

The fourth proportional to 123,474.24, 185,211.36 and 86,702.40 is: 130,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,474.24 : 185,211.36 = 86,702.40 : x
  2. Step 2: Convert to fraction form
    123,474.24/185,211.36 = 86,702.40/x
  3. Step 3: Cross multiply
    123,474.24x = 185,211.36 × 86,702.40
  4. Step 4: Simplify right side
    123,474.24x = 16,058,269,419.26
  5. Step 5: Solve for x
    x = 16,058,269,419.26/123,474.24
  6. Step 6: Final answer
    x = 130,053.60

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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.