Home / 153,748.10-212,087.08-90,073.60

Finding the Fourth Proportional to 153,748.10, 212,087.08 and 90,073.60

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Solution

The fourth proportional to 153,748.10, 212,087.08 and 90,073.60 is: 124,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,748.10 : 212,087.08 = 90,073.60 : x
  2. Step 2: Convert to fraction form
    153,748.10/212,087.08 = 90,073.60/x
  3. Step 3: Cross multiply
    153,748.10x = 212,087.08 × 90,073.60
  4. Step 4: Simplify right side
    153,748.10x = 19,103,446,809.09
  5. Step 5: Solve for x
    x = 19,103,446,809.09/153,748.10
  6. Step 6: Final answer
    x = 124,251.60

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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.