Home / 100,948.10-151,279.29-55,989.25

Finding the Fourth Proportional to 100,948.10, 151,279.29 and 55,989.25

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Solution

The fourth proportional to 100,948.10, 151,279.29 and 55,989.25 is: 83,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,948.10 : 151,279.29 = 55,989.25 : x
  2. Step 2: Convert to fraction form
    100,948.10/151,279.29 = 55,989.25/x
  3. Step 3: Cross multiply
    100,948.10x = 151,279.29 × 55,989.25
  4. Step 4: Simplify right side
    100,948.10x = 8,470,013,995.54
  5. Step 5: Solve for x
    x = 8,470,013,995.54/100,948.10
  6. Step 6: Final answer
    x = 83,904.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.