Home / 103,931.52-155,507.25-61,656.81

Finding the Fourth Proportional to 103,931.52, 155,507.25 and 61,656.81

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Solution

The fourth proportional to 103,931.52, 155,507.25 and 61,656.81 is: 92,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,931.52 : 155,507.25 = 61,656.81 : x
  2. Step 2: Convert to fraction form
    103,931.52/155,507.25 = 61,656.81/x
  3. Step 3: Cross multiply
    103,931.52x = 155,507.25 × 61,656.81
  4. Step 4: Simplify right side
    103,931.52x = 9,588,080,189.34
  5. Step 5: Solve for x
    x = 9,588,080,189.34/103,931.52
  6. Step 6: Final answer
    x = 92,253.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.