Home / 157,975.89-218,006.76-86,356.23

Finding the Fourth Proportional to 157,975.89, 218,006.76 and 86,356.23

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Solution

The fourth proportional to 157,975.89, 218,006.76 and 86,356.23 is: 119,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,975.89 : 218,006.76 = 86,356.23 : x
  2. Step 2: Convert to fraction form
    157,975.89/218,006.76 = 86,356.23/x
  3. Step 3: Cross multiply
    157,975.89x = 218,006.76 × 86,356.23
  4. Step 4: Simplify right side
    157,975.89x = 18,826,241,908.11
  5. Step 5: Solve for x
    x = 18,826,241,908.11/157,975.89
  6. Step 6: Final answer
    x = 119,171.61

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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.