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Finding the Fourth Proportional to 145,459.81, 200,505.81 and 133,256.35

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Solution

The fourth proportional to 145,459.81, 200,505.81 and 133,256.35 is: 183,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,459.81 : 200,505.81 = 133,256.35 : x
  2. Step 2: Convert to fraction form
    145,459.81/200,505.81 = 133,256.35/x
  3. Step 3: Cross multiply
    145,459.81x = 200,505.81 × 133,256.35
  4. Step 4: Simplify right side
    145,459.81x = 26,718,672,394.39
  5. Step 5: Solve for x
    x = 26,718,672,394.39/145,459.81
  6. Step 6: Final answer
    x = 183,684.22

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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.