Home / 153,948.20-231,159.90-83,964.20

Finding the Fourth Proportional to 153,948.20, 231,159.90 and 83,964.20

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Solution

The fourth proportional to 153,948.20, 231,159.90 and 83,964.20 is: 126,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,948.20 : 231,159.90 = 83,964.20 : x
  2. Step 2: Convert to fraction form
    153,948.20/231,159.90 = 83,964.20/x
  3. Step 3: Cross multiply
    153,948.20x = 231,159.90 × 83,964.20
  4. Step 4: Simplify right side
    153,948.20x = 19,409,156,075.58
  5. Step 5: Solve for x
    x = 19,409,156,075.58/153,948.20
  6. Step 6: Final answer
    x = 126,075.89

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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.