Home / 128,116.28-176,810.45-94,280.36

Finding the Fourth Proportional to 128,116.28, 176,810.45 and 94,280.36

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Solution

The fourth proportional to 128,116.28, 176,810.45 and 94,280.36 is: 130,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,116.28 : 176,810.45 = 94,280.36 : x
  2. Step 2: Convert to fraction form
    128,116.28/176,810.45 = 94,280.36/x
  3. Step 3: Cross multiply
    128,116.28x = 176,810.45 × 94,280.36
  4. Step 4: Simplify right side
    128,116.28x = 16,669,751,522.31
  5. Step 5: Solve for x
    x = 16,669,751,522.31/128,116.28
  6. Step 6: Final answer
    x = 130,114.23

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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.