Home / 157,869.83-218,090.88-136,612.19

Finding the Fourth Proportional to 157,869.83, 218,090.88 and 136,612.19

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Solution

The fourth proportional to 157,869.83, 218,090.88 and 136,612.19 is: 188,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,869.83 : 218,090.88 = 136,612.19 : x
  2. Step 2: Convert to fraction form
    157,869.83/218,090.88 = 136,612.19/x
  3. Step 3: Cross multiply
    157,869.83x = 218,090.88 × 136,612.19
  4. Step 4: Simplify right side
    157,869.83x = 29,793,872,054.29
  5. Step 5: Solve for x
    x = 29,793,872,054.29/157,869.83
  6. Step 6: Final answer
    x = 188,724.30

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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.