Home / 157,465.60-217,233.93-100,074.16

Finding the Fourth Proportional to 157,465.60, 217,233.93 and 100,074.16

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Solution

The fourth proportional to 157,465.60, 217,233.93 and 100,074.16 is: 138,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,465.60 : 217,233.93 = 100,074.16 : x
  2. Step 2: Convert to fraction form
    157,465.60/217,233.93 = 100,074.16/x
  3. Step 3: Cross multiply
    157,465.60x = 217,233.93 × 100,074.16
  4. Step 4: Simplify right side
    157,465.60x = 21,739,501,982.08
  5. Step 5: Solve for x
    x = 21,739,501,982.08/157,465.60
  6. Step 6: Final answer
    x = 138,058.74

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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.