Home / 157,636.05-217,543.00-86,020.01

Finding the Fourth Proportional to 157,636.05, 217,543.00 and 86,020.01

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Solution

The fourth proportional to 157,636.05, 217,543.00 and 86,020.01 is: 118,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,636.05 : 217,543.00 = 86,020.01 : x
  2. Step 2: Convert to fraction form
    157,636.05/217,543.00 = 86,020.01/x
  3. Step 3: Cross multiply
    157,636.05x = 217,543.00 × 86,020.01
  4. Step 4: Simplify right side
    157,636.05x = 18,713,049,732.67
  5. Step 5: Solve for x
    x = 18,713,049,732.67/157,636.05
  6. Step 6: Final answer
    x = 118,710.47

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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.