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Finding the Fourth Proportional to 85,710.40, 118,155.92 and 60,137.04

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Solution

The fourth proportional to 85,710.40, 118,155.92 and 60,137.04 is: 82,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,710.40 : 118,155.92 = 60,137.04 : x
  2. Step 2: Convert to fraction form
    85,710.40/118,155.92 = 60,137.04/x
  3. Step 3: Cross multiply
    85,710.40x = 118,155.92 × 60,137.04
  4. Step 4: Simplify right side
    85,710.40x = 7,105,547,287.28
  5. Step 5: Solve for x
    x = 7,105,547,287.28/85,710.40
  6. Step 6: Final answer
    x = 82,901.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.