Home / 123,032.40-184,548.60-78,709.20

Finding the Fourth Proportional to 123,032.40, 184,548.60 and 78,709.20

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Solution

The fourth proportional to 123,032.40, 184,548.60 and 78,709.20 is: 118,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,032.40 : 184,548.60 = 78,709.20 : x
  2. Step 2: Convert to fraction form
    123,032.40/184,548.60 = 78,709.20/x
  3. Step 3: Cross multiply
    123,032.40x = 184,548.60 × 78,709.20
  4. Step 4: Simplify right side
    123,032.40x = 14,525,672,667.12
  5. Step 5: Solve for x
    x = 14,525,672,667.12/123,032.40
  6. Step 6: Final answer
    x = 118,063.80

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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.