Home / 123,025.40-184,538.10-78,702.20

Finding the Fourth Proportional to 123,025.40, 184,538.10 and 78,702.20

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Solution

The fourth proportional to 123,025.40, 184,538.10 and 78,702.20 is: 118,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,025.40 : 184,538.10 = 78,702.20 : x
  2. Step 2: Convert to fraction form
    123,025.40/184,538.10 = 78,702.20/x
  3. Step 3: Cross multiply
    123,025.40x = 184,538.10 × 78,702.20
  4. Step 4: Simplify right side
    123,025.40x = 14,523,554,453.82
  5. Step 5: Solve for x
    x = 14,523,554,453.82/123,025.40
  6. Step 6: Final answer
    x = 118,053.30

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1.5x scale

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.