Home / 108,678.14-149,975.43-60,931.46

Finding the Fourth Proportional to 108,678.14, 149,975.43 and 60,931.46

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Solution

The fourth proportional to 108,678.14, 149,975.43 and 60,931.46 is: 84,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,678.14 : 149,975.43 = 60,931.46 : x
  2. Step 2: Convert to fraction form
    108,678.14/149,975.43 = 60,931.46/x
  3. Step 3: Cross multiply
    108,678.14x = 149,975.43 × 60,931.46
  4. Step 4: Simplify right side
    108,678.14x = 9,138,221,914.03
  5. Step 5: Solve for x
    x = 9,138,221,914.03/108,678.14
  6. Step 6: Final answer
    x = 84,085.19

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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.