Home / 153,849.44-212,314.20-90,171.20

Finding the Fourth Proportional to 153,849.44, 212,314.20 and 90,171.20

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Solution

The fourth proportional to 153,849.44, 212,314.20 and 90,171.20 is: 124,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,849.44 : 212,314.20 = 90,171.20 : x
  2. Step 2: Convert to fraction form
    153,849.44/212,314.20 = 90,171.20/x
  3. Step 3: Cross multiply
    153,849.44x = 212,314.20 × 90,171.20
  4. Step 4: Simplify right side
    153,849.44x = 19,144,626,191.04
  5. Step 5: Solve for x
    x = 19,144,626,191.04/153,849.44
  6. Step 6: Final answer
    x = 124,437.41

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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.