Home / 133,417.89-184,115.18-72,987.84

Finding the Fourth Proportional to 133,417.89, 184,115.18 and 72,987.84

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Solution

The fourth proportional to 133,417.89, 184,115.18 and 72,987.84 is: 100,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,417.89 : 184,115.18 = 72,987.84 : x
  2. Step 2: Convert to fraction form
    133,417.89/184,115.18 = 72,987.84/x
  3. Step 3: Cross multiply
    133,417.89x = 184,115.18 × 72,987.84
  4. Step 4: Simplify right side
    133,417.89x = 13,438,168,934.47
  5. Step 5: Solve for x
    x = 13,438,168,934.47/133,417.89
  6. Step 6: Final answer
    x = 100,722.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.