Home / 153,977.80-230,966.70-90,992.20

Finding the Fourth Proportional to 153,977.80, 230,966.70 and 90,992.20

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Solution

The fourth proportional to 153,977.80, 230,966.70 and 90,992.20 is: 136,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,977.80 : 230,966.70 = 90,992.20 : x
  2. Step 2: Convert to fraction form
    153,977.80/230,966.70 = 90,992.20/x
  3. Step 3: Cross multiply
    153,977.80x = 230,966.70 × 90,992.20
  4. Step 4: Simplify right side
    153,977.80x = 21,016,168,159.74
  5. Step 5: Solve for x
    x = 21,016,168,159.74/153,977.80
  6. Step 6: Final answer
    x = 136,488.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.