Home / 157,327.65-217,112.40-85,705.83

Finding the Fourth Proportional to 157,327.65, 217,112.40 and 85,705.83

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Solution

The fourth proportional to 157,327.65, 217,112.40 and 85,705.83 is: 118,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,327.65 : 217,112.40 = 85,705.83 : x
  2. Step 2: Convert to fraction form
    157,327.65/217,112.40 = 85,705.83/x
  3. Step 3: Cross multiply
    157,327.65x = 217,112.40 × 85,705.83
  4. Step 4: Simplify right side
    157,327.65x = 18,607,798,445.29
  5. Step 5: Solve for x
    x = 18,607,798,445.29/157,327.65
  6. Step 6: Final answer
    x = 118,274.18

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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.