Home / 153,691.40-212,110.44-90,082.64

Finding the Fourth Proportional to 153,691.40, 212,110.44 and 90,082.64

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Solution

The fourth proportional to 153,691.40, 212,110.44 and 90,082.64 is: 124,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,691.40 : 212,110.44 = 90,082.64 : x
  2. Step 2: Convert to fraction form
    153,691.40/212,110.44 = 90,082.64/x
  3. Step 3: Cross multiply
    153,691.40x = 212,110.44 × 90,082.64
  4. Step 4: Simplify right side
    153,691.40x = 19,107,468,406.76
  5. Step 5: Solve for x
    x = 19,107,468,406.76/153,691.40
  6. Step 6: Final answer
    x = 124,323.60

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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.