Home / 102,030.60-140,746.77-65,168.04

Finding the Fourth Proportional to 102,030.60, 140,746.77 and 65,168.04

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Solution

The fourth proportional to 102,030.60, 140,746.77 and 65,168.04 is: 89,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,030.60 : 140,746.77 = 65,168.04 : x
  2. Step 2: Convert to fraction form
    102,030.60/140,746.77 = 65,168.04/x
  3. Step 3: Cross multiply
    102,030.60x = 140,746.77 × 65,168.04
  4. Step 4: Simplify right side
    102,030.60x = 9,172,191,137.23
  5. Step 5: Solve for x
    x = 9,172,191,137.23/102,030.60
  6. Step 6: Final answer
    x = 89,896.47

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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.