Home / 157,240.23-216,994.10-85,621.65

Finding the Fourth Proportional to 157,240.23, 216,994.10 and 85,621.65

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Solution

The fourth proportional to 157,240.23, 216,994.10 and 85,621.65 is: 118,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,240.23 : 216,994.10 = 85,621.65 : x
  2. Step 2: Convert to fraction form
    157,240.23/216,994.10 = 85,621.65/x
  3. Step 3: Cross multiply
    157,240.23x = 216,994.10 × 85,621.65
  4. Step 4: Simplify right side
    157,240.23x = 18,579,392,882.27
  5. Step 5: Solve for x
    x = 18,579,392,882.27/157,240.23
  6. Step 6: Final answer
    x = 118,159.28

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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.