Home / 123,023.40-184,535.10-78,700.20

Finding the Fourth Proportional to 123,023.40, 184,535.10 and 78,700.20

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Solution

The fourth proportional to 123,023.40, 184,535.10 and 78,700.20 is: 118,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,023.40 : 184,535.10 = 78,700.20 : x
  2. Step 2: Convert to fraction form
    123,023.40/184,535.10 = 78,700.20/x
  3. Step 3: Cross multiply
    123,023.40x = 184,535.10 × 78,700.20
  4. Step 4: Simplify right side
    123,023.40x = 14,522,949,277.02
  5. Step 5: Solve for x
    x = 14,522,949,277.02/123,023.40
  6. Step 6: Final answer
    x = 118,050.30

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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.