Home / 99,484.64-137,298.48-74,290.40

Finding the Fourth Proportional to 99,484.64, 137,298.48 and 74,290.40

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Solution

The fourth proportional to 99,484.64, 137,298.48 and 74,290.40 is: 102,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,484.64 : 137,298.48 = 74,290.40 : x
  2. Step 2: Convert to fraction form
    99,484.64/137,298.48 = 74,290.40/x
  3. Step 3: Cross multiply
    99,484.64x = 137,298.48 × 74,290.40
  4. Step 4: Simplify right side
    99,484.64x = 10,199,958,998.59
  5. Step 5: Solve for x
    x = 10,199,958,998.59/99,484.64
  6. Step 6: Final answer
    x = 102,527.98

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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.