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Finding the Fourth Proportional to 111,124.60, 153,313.82 and 63,343.48

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Solution

The fourth proportional to 111,124.60, 153,313.82 and 63,343.48 is: 87,392.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,124.60 : 153,313.82 = 63,343.48 : x
  2. Step 2: Convert to fraction form
    111,124.60/153,313.82 = 63,343.48/x
  3. Step 3: Cross multiply
    111,124.60x = 153,313.82 × 63,343.48
  4. Step 4: Simplify right side
    111,124.60x = 9,711,430,890.89
  5. Step 5: Solve for x
    x = 9,711,430,890.89/111,124.60
  6. Step 6: Final answer
    x = 87,392.27

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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.