Home / 157,973.32-218,007.06-86,356.36

Finding the Fourth Proportional to 157,973.32, 218,007.06 and 86,356.36

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Solution

The fourth proportional to 157,973.32, 218,007.06 and 86,356.36 is: 119,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,973.32 : 218,007.06 = 86,356.36 : x
  2. Step 2: Convert to fraction form
    157,973.32/218,007.06 = 86,356.36/x
  3. Step 3: Cross multiply
    157,973.32x = 218,007.06 × 86,356.36
  4. Step 4: Simplify right side
    157,973.32x = 18,826,296,155.90
  5. Step 5: Solve for x
    x = 18,826,296,155.90/157,973.32
  6. Step 6: Final answer
    x = 119,173.90

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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.