Home / 118,386.09-163,362.09-66,711.60

Finding the Fourth Proportional to 118,386.09, 163,362.09 and 66,711.60

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Solution

The fourth proportional to 118,386.09, 163,362.09 and 66,711.60 is: 92,055.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,386.09 : 163,362.09 = 66,711.60 : x
  2. Step 2: Convert to fraction form
    118,386.09/163,362.09 = 66,711.60/x
  3. Step 3: Cross multiply
    118,386.09x = 163,362.09 × 66,711.60
  4. Step 4: Simplify right side
    118,386.09x = 10,898,146,403.24
  5. Step 5: Solve for x
    x = 10,898,146,403.24/118,386.09
  6. Step 6: Final answer
    x = 92,055.97

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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.