Home / 118,287.02-163,294.64-72,989.97

Finding the Fourth Proportional to 118,287.02, 163,294.64 and 72,989.97

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Solution

The fourth proportional to 118,287.02, 163,294.64 and 72,989.97 is: 100,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,287.02 : 163,294.64 = 72,989.97 : x
  2. Step 2: Convert to fraction form
    118,287.02/163,294.64 = 72,989.97/x
  3. Step 3: Cross multiply
    118,287.02x = 163,294.64 × 72,989.97
  4. Step 4: Simplify right side
    118,287.02x = 11,918,870,509.81
  5. Step 5: Solve for x
    x = 11,918,870,509.81/118,287.02
  6. Step 6: Final answer
    x = 100,762.29

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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.