Home / 157,436.16-235,110.72-138,359.04

Finding the Fourth Proportional to 157,436.16, 235,110.72 and 138,359.04

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Solution

The fourth proportional to 157,436.16, 235,110.72 and 138,359.04 is: 206,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,436.16 : 235,110.72 = 138,359.04 : x
  2. Step 2: Convert to fraction form
    157,436.16/235,110.72 = 138,359.04/x
  3. Step 3: Cross multiply
    157,436.16x = 235,110.72 × 138,359.04
  4. Step 4: Simplify right side
    157,436.16x = 32,529,693,512.91
  5. Step 5: Solve for x
    x = 32,529,693,512.91/157,436.16
  6. Step 6: Final answer
    x = 206,621.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.