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Finding the Fourth Proportional to 145,658.79, 200,984.09 and 133,886.76

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Solution

The fourth proportional to 145,658.79, 200,984.09 and 133,886.76 is: 184,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,658.79 : 200,984.09 = 133,886.76 : x
  2. Step 2: Convert to fraction form
    145,658.79/200,984.09 = 133,886.76/x
  3. Step 3: Cross multiply
    145,658.79x = 200,984.09 × 133,886.76
  4. Step 4: Simplify right side
    145,658.79x = 26,909,107,198.52
  5. Step 5: Solve for x
    x = 26,909,107,198.52/145,658.79
  6. Step 6: Final answer
    x = 184,740.70

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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.