Home / 123,151.04-184,424.16-78,646.40

Finding the Fourth Proportional to 123,151.04, 184,424.16 and 78,646.40

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Solution

The fourth proportional to 123,151.04, 184,424.16 and 78,646.40 is: 117,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,151.04 : 184,424.16 = 78,646.40 : x
  2. Step 2: Convert to fraction form
    123,151.04/184,424.16 = 78,646.40/x
  3. Step 3: Cross multiply
    123,151.04x = 184,424.16 × 78,646.40
  4. Step 4: Simplify right side
    123,151.04x = 14,504,296,257.02
  5. Step 5: Solve for x
    x = 14,504,296,257.02/123,151.04
  6. Step 6: Final answer
    x = 117,776.48

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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.