Home / 145,066.36-217,666.50-66,204.76

Finding the Fourth Proportional to 145,066.36, 217,666.50 and 66,204.76

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Solution

The fourth proportional to 145,066.36, 217,666.50 and 66,204.76 is: 99,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,066.36 : 217,666.50 = 66,204.76 : x
  2. Step 2: Convert to fraction form
    145,066.36/217,666.50 = 66,204.76/x
  3. Step 3: Cross multiply
    145,066.36x = 217,666.50 × 66,204.76
  4. Step 4: Simplify right side
    145,066.36x = 14,410,558,392.54
  5. Step 5: Solve for x
    x = 14,410,558,392.54/145,066.36
  6. Step 6: Final answer
    x = 99,337.70

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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.