Home / 128,017.44-176,607.81-122,088.24

Finding the Fourth Proportional to 128,017.44, 176,607.81 and 122,088.24

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Solution

The fourth proportional to 128,017.44, 176,607.81 and 122,088.24 is: 168,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,017.44 : 176,607.81 = 122,088.24 : x
  2. Step 2: Convert to fraction form
    128,017.44/176,607.81 = 122,088.24/x
  3. Step 3: Cross multiply
    128,017.44x = 176,607.81 × 122,088.24
  4. Step 4: Simplify right side
    128,017.44x = 21,561,736,693.15
  5. Step 5: Solve for x
    x = 21,561,736,693.15/128,017.44
  6. Step 6: Final answer
    x = 168,428.12

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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.