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Finding the Fourth Proportional to 111,148.62, 153,383.65 and 63,402.76

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Solution

The fourth proportional to 111,148.62, 153,383.65 and 63,402.76 is: 87,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,148.62 : 153,383.65 = 63,402.76 : x
  2. Step 2: Convert to fraction form
    111,148.62/153,383.65 = 63,402.76/x
  3. Step 3: Cross multiply
    111,148.62x = 153,383.65 × 63,402.76
  4. Step 4: Simplify right side
    111,148.62x = 9,724,946,748.87
  5. Step 5: Solve for x
    x = 9,724,946,748.87/111,148.62
  6. Step 6: Final answer
    x = 87,494.98

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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.