Home / 116,730.53-161,088.80-66,429.53

Finding the Fourth Proportional to 116,730.53, 161,088.80 and 66,429.53

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Solution

The fourth proportional to 116,730.53, 161,088.80 and 66,429.53 is: 91,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,730.53 : 161,088.80 = 66,429.53 : x
  2. Step 2: Convert to fraction form
    116,730.53/161,088.80 = 66,429.53/x
  3. Step 3: Cross multiply
    116,730.53x = 161,088.80 × 66,429.53
  4. Step 4: Simplify right side
    116,730.53x = 10,701,053,272.26
  5. Step 5: Solve for x
    x = 10,701,053,272.26/116,730.53
  6. Step 6: Final answer
    x = 91,673.13

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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.