Home / 108,095.14-149,128.35-72,228.34

Finding the Fourth Proportional to 108,095.14, 149,128.35 and 72,228.34

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Solution

The fourth proportional to 108,095.14, 149,128.35 and 72,228.34 is: 99,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,095.14 : 149,128.35 = 72,228.34 : x
  2. Step 2: Convert to fraction form
    108,095.14/149,128.35 = 72,228.34/x
  3. Step 3: Cross multiply
    108,095.14x = 149,128.35 × 72,228.34
  4. Step 4: Simplify right side
    108,095.14x = 10,771,293,167.44
  5. Step 5: Solve for x
    x = 10,771,293,167.44/108,095.14
  6. Step 6: Final answer
    x = 99,646.41

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1.5x scale

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.