Home / 85,835.04-118,387.38-75,206.28

Finding the Fourth Proportional to 85,835.04, 118,387.38 and 75,206.28

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Solution

The fourth proportional to 85,835.04, 118,387.38 and 75,206.28 is: 103,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,835.04 : 118,387.38 = 75,206.28 : x
  2. Step 2: Convert to fraction form
    85,835.04/118,387.38 = 75,206.28/x
  3. Step 3: Cross multiply
    85,835.04x = 118,387.38 × 75,206.28
  4. Step 4: Simplify right side
    85,835.04x = 8,903,474,448.75
  5. Step 5: Solve for x
    x = 8,903,474,448.75/85,835.04
  6. Step 6: Final answer
    x = 103,727.74

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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.