Home / 118,088.20-177,132.30-99,717.40

Finding the Fourth Proportional to 118,088.20, 177,132.30 and 99,717.40

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Solution

The fourth proportional to 118,088.20, 177,132.30 and 99,717.40 is: 149,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,088.20 : 177,132.30 = 99,717.40 : x
  2. Step 2: Convert to fraction form
    118,088.20/177,132.30 = 99,717.40/x
  3. Step 3: Cross multiply
    118,088.20x = 177,132.30 × 99,717.40
  4. Step 4: Simplify right side
    118,088.20x = 17,663,172,412.02
  5. Step 5: Solve for x
    x = 17,663,172,412.02/118,088.20
  6. Step 6: Final answer
    x = 149,576.10

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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.