Home / 128,275.70-177,076.67-98,062.29

Finding the Fourth Proportional to 128,275.70, 177,076.67 and 98,062.29

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Solution

The fourth proportional to 128,275.70, 177,076.67 and 98,062.29 is: 135,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,275.70 : 177,076.67 = 98,062.29 : x
  2. Step 2: Convert to fraction form
    128,275.70/177,076.67 = 98,062.29/x
  3. Step 3: Cross multiply
    128,275.70x = 177,076.67 × 98,062.29
  4. Step 4: Simplify right side
    128,275.70x = 17,364,543,275.46
  5. Step 5: Solve for x
    x = 17,364,543,275.46/128,275.70
  6. Step 6: Final answer
    x = 135,368.93

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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.