Home / 128,448.23-177,256.01-71,084.22

Finding the Fourth Proportional to 128,448.23, 177,256.01 and 71,084.22

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Solution

The fourth proportional to 128,448.23, 177,256.01 and 71,084.22 is: 98,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,448.23 : 177,256.01 = 71,084.22 : x
  2. Step 2: Convert to fraction form
    128,448.23/177,256.01 = 71,084.22/x
  3. Step 3: Cross multiply
    128,448.23x = 177,256.01 × 71,084.22
  4. Step 4: Simplify right side
    128,448.23x = 12,600,104,724.16
  5. Step 5: Solve for x
    x = 12,600,104,724.16/128,448.23
  6. Step 6: Final answer
    x = 98,094.81

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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.