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Finding the Fourth Proportional to 133,357.62, 184,030.98 and 72,928.08

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Solution

The fourth proportional to 133,357.62, 184,030.98 and 72,928.08 is: 100,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,357.62 : 184,030.98 = 72,928.08 : x
  2. Step 2: Convert to fraction form
    133,357.62/184,030.98 = 72,928.08/x
  3. Step 3: Cross multiply
    133,357.62x = 184,030.98 × 72,928.08
  4. Step 4: Simplify right side
    133,357.62x = 13,421,026,031.92
  5. Step 5: Solve for x
    x = 13,421,026,031.92/133,357.62
  6. Step 6: Final answer
    x = 100,639.36

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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.