Home / 235,511.90-325,003.28-128,079.62

Finding the Fourth Proportional to 235,511.90, 325,003.28 and 128,079.62

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Solution

The fourth proportional to 235,511.90, 325,003.28 and 128,079.62 is: 176,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,511.90 : 325,003.28 = 128,079.62 : x
  2. Step 2: Convert to fraction form
    235,511.90/325,003.28 = 128,079.62/x
  3. Step 3: Cross multiply
    235,511.90x = 325,003.28 × 128,079.62
  4. Step 4: Simplify right side
    235,511.90x = 41,626,294,335.74
  5. Step 5: Solve for x
    x = 41,626,294,335.74/235,511.90
  6. Step 6: Final answer
    x = 176,748.16

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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.