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Finding the Fourth Proportional to 133,048.01, 183,602.71 and 72,619.40

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Solution

The fourth proportional to 133,048.01, 183,602.71 and 72,619.40 is: 100,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,048.01 : 183,602.71 = 72,619.40 : x
  2. Step 2: Convert to fraction form
    133,048.01/183,602.71 = 72,619.40/x
  3. Step 3: Cross multiply
    133,048.01x = 183,602.71 × 72,619.40
  4. Step 4: Simplify right side
    133,048.01x = 13,333,118,638.57
  5. Step 5: Solve for x
    x = 13,333,118,638.57/133,048.01
  6. Step 6: Final answer
    x = 100,212.84

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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.