Home / 157,288.53-235,946.16-138,786.51

Finding the Fourth Proportional to 157,288.53, 235,946.16 and 138,786.51

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Solution

The fourth proportional to 157,288.53, 235,946.16 and 138,786.51 is: 208,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,288.53 : 235,946.16 = 138,786.51 : x
  2. Step 2: Convert to fraction form
    157,288.53/235,946.16 = 138,786.51/x
  3. Step 3: Cross multiply
    157,288.53x = 235,946.16 × 138,786.51
  4. Step 4: Simplify right side
    157,288.53x = 32,746,144,094.30
  5. Step 5: Solve for x
    x = 32,746,144,094.30/157,288.53
  6. Step 6: Final answer
    x = 208,191.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.