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Finding the Fourth Proportional to 133,343.42, 184,013.90 and 72,914.11

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Solution

The fourth proportional to 133,343.42, 184,013.90 and 72,914.11 is: 100,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,343.42 : 184,013.90 = 72,914.11 : x
  2. Step 2: Convert to fraction form
    133,343.42/184,013.90 = 72,914.11/x
  3. Step 3: Cross multiply
    133,343.42x = 184,013.90 × 72,914.11
  4. Step 4: Simplify right side
    133,343.42x = 13,417,209,746.13
  5. Step 5: Solve for x
    x = 13,417,209,746.13/133,343.42
  6. Step 6: Final answer
    x = 100,621.46

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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.