Home / 157,727.10-217,662.29-86,107.13

Finding the Fourth Proportional to 157,727.10, 217,662.29 and 86,107.13

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Solution

The fourth proportional to 157,727.10, 217,662.29 and 86,107.13 is: 118,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,727.10 : 217,662.29 = 86,107.13 : x
  2. Step 2: Convert to fraction form
    157,727.10/217,662.29 = 86,107.13/x
  3. Step 3: Cross multiply
    157,727.10x = 217,662.29 × 86,107.13
  4. Step 4: Simplify right side
    157,727.10x = 18,742,274,012.82
  5. Step 5: Solve for x
    x = 18,742,274,012.82/157,727.10
  6. Step 6: Final answer
    x = 118,827.23

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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.