Home / 145,281.93-200,398.57-99,881.09

Finding the Fourth Proportional to 145,281.93, 200,398.57 and 99,881.09

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Solution

The fourth proportional to 145,281.93, 200,398.57 and 99,881.09 is: 137,773.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,281.93 : 200,398.57 = 99,881.09 : x
  2. Step 2: Convert to fraction form
    145,281.93/200,398.57 = 99,881.09/x
  3. Step 3: Cross multiply
    145,281.93x = 200,398.57 × 99,881.09
  4. Step 4: Simplify right side
    145,281.93x = 20,016,027,857.34
  5. Step 5: Solve for x
    x = 20,016,027,857.34/145,281.93
  6. Step 6: Final answer
    x = 137,773.69

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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.