Home / 157,730.72-217,669.52-86,112.16

Finding the Fourth Proportional to 157,730.72, 217,669.52 and 86,112.16

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Solution

The fourth proportional to 157,730.72, 217,669.52 and 86,112.16 is: 118,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,730.72 : 217,669.52 = 86,112.16 : x
  2. Step 2: Convert to fraction form
    157,730.72/217,669.52 = 86,112.16/x
  3. Step 3: Cross multiply
    157,730.72x = 217,669.52 × 86,112.16
  4. Step 4: Simplify right side
    157,730.72x = 18,743,992,533.36
  5. Step 5: Solve for x
    x = 18,743,992,533.36/157,730.72
  6. Step 6: Final answer
    x = 118,835.40

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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.