Home / 99,269.35-136,991.25-53,946.47

Finding the Fourth Proportional to 99,269.35, 136,991.25 and 53,946.47

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Solution

The fourth proportional to 99,269.35, 136,991.25 and 53,946.47 is: 74,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,269.35 : 136,991.25 = 53,946.47 : x
  2. Step 2: Convert to fraction form
    99,269.35/136,991.25 = 53,946.47/x
  3. Step 3: Cross multiply
    99,269.35x = 136,991.25 × 53,946.47
  4. Step 4: Simplify right side
    99,269.35x = 7,390,194,700.87
  5. Step 5: Solve for x
    x = 7,390,194,700.87/99,269.35
  6. Step 6: Final answer
    x = 74,445.89

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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.