Home / 128,264.26-176,890.08-80,522.06

Finding the Fourth Proportional to 128,264.26, 176,890.08 and 80,522.06

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Solution

The fourth proportional to 128,264.26, 176,890.08 and 80,522.06 is: 111,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,264.26 : 176,890.08 = 80,522.06 : x
  2. Step 2: Convert to fraction form
    128,264.26/176,890.08 = 80,522.06/x
  3. Step 3: Cross multiply
    128,264.26x = 176,890.08 × 80,522.06
  4. Step 4: Simplify right side
    128,264.26x = 14,243,553,635.16
  5. Step 5: Solve for x
    x = 14,243,553,635.16/128,264.26
  6. Step 6: Final answer
    x = 111,048.50

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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.