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Finding the Fourth Proportional to 145,710.96, 201,103.47 and 88,359.60

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Solution

The fourth proportional to 145,710.96, 201,103.47 and 88,359.60 is: 121,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,710.96 : 201,103.47 = 88,359.60 : x
  2. Step 2: Convert to fraction form
    145,710.96/201,103.47 = 88,359.60/x
  3. Step 3: Cross multiply
    145,710.96x = 201,103.47 × 88,359.60
  4. Step 4: Simplify right side
    145,710.96x = 17,769,422,167.81
  5. Step 5: Solve for x
    x = 17,769,422,167.81/145,710.96
  6. Step 6: Final answer
    x = 121,949.80

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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.