Home / 153,751.14-212,180.86-90,091.62

Finding the Fourth Proportional to 153,751.14, 212,180.86 and 90,091.62

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Solution

The fourth proportional to 153,751.14, 212,180.86 and 90,091.62 is: 124,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,751.14 : 212,180.86 = 90,091.62 : x
  2. Step 2: Convert to fraction form
    153,751.14/212,180.86 = 90,091.62/x
  3. Step 3: Cross multiply
    153,751.14x = 212,180.86 × 90,091.62
  4. Step 4: Simplify right side
    153,751.14x = 19,115,717,410.39
  5. Step 5: Solve for x
    x = 19,115,717,410.39/153,751.14
  6. Step 6: Final answer
    x = 124,328.95

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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.