Home / 127,616.52-191,090.35-89,972.79

Finding the Fourth Proportional to 127,616.52, 191,090.35 and 89,972.79

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Solution

The fourth proportional to 127,616.52, 191,090.35 and 89,972.79 is: 134,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,616.52 : 191,090.35 = 89,972.79 : x
  2. Step 2: Convert to fraction form
    127,616.52/191,090.35 = 89,972.79/x
  3. Step 3: Cross multiply
    127,616.52x = 191,090.35 × 89,972.79
  4. Step 4: Simplify right side
    127,616.52x = 17,192,931,931.58
  5. Step 5: Solve for x
    x = 17,192,931,931.58/127,616.52
  6. Step 6: Final answer
    x = 134,723.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.