Home / 128,274.03-177,004.44-74,547.81

Finding the Fourth Proportional to 128,274.03, 177,004.44 and 74,547.81

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Solution

The fourth proportional to 128,274.03, 177,004.44 and 74,547.81 is: 102,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,274.03 : 177,004.44 = 74,547.81 : x
  2. Step 2: Convert to fraction form
    128,274.03/177,004.44 = 74,547.81/x
  3. Step 3: Cross multiply
    128,274.03x = 177,004.44 × 74,547.81
  4. Step 4: Simplify right side
    128,274.03x = 13,195,293,362.28
  5. Step 5: Solve for x
    x = 13,195,293,362.28/128,274.03
  6. Step 6: Final answer
    x = 102,868.00

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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.