Home / 153,934.19-212,464.59-90,292.49

Finding the Fourth Proportional to 153,934.19, 212,464.59 and 90,292.49

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Solution

The fourth proportional to 153,934.19, 212,464.59 and 90,292.49 is: 124,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.19 : 212,464.59 = 90,292.49 : x
  2. Step 2: Convert to fraction form
    153,934.19/212,464.59 = 90,292.49/x
  3. Step 3: Cross multiply
    153,934.19x = 212,464.59 × 90,292.49
  4. Step 4: Simplify right side
    153,934.19x = 19,183,956,627.22
  5. Step 5: Solve for x
    x = 19,183,956,627.22/153,934.19
  6. Step 6: Final answer
    x = 124,624.41

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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.