Home / 147,519.30-203,573.25-90,158.40

Finding the Fourth Proportional to 147,519.30, 203,573.25 and 90,158.40

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Solution

The fourth proportional to 147,519.30, 203,573.25 and 90,158.40 is: 124,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,519.30 : 203,573.25 = 90,158.40 : x
  2. Step 2: Convert to fraction form
    147,519.30/203,573.25 = 90,158.40/x
  3. Step 3: Cross multiply
    147,519.30x = 203,573.25 × 90,158.40
  4. Step 4: Simplify right side
    147,519.30x = 18,353,838,502.80
  5. Step 5: Solve for x
    x = 18,353,838,502.80/147,519.30
  6. Step 6: Final answer
    x = 124,416.52

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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.