Home / 157,502.12-217,357.40-85,886.06

Finding the Fourth Proportional to 157,502.12, 217,357.40 and 85,886.06

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Solution

The fourth proportional to 157,502.12, 217,357.40 and 85,886.06 is: 118,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,502.12 : 217,357.40 = 85,886.06 : x
  2. Step 2: Convert to fraction form
    157,502.12/217,357.40 = 85,886.06/x
  3. Step 3: Cross multiply
    157,502.12x = 217,357.40 × 85,886.06
  4. Step 4: Simplify right side
    157,502.12x = 18,667,970,811.81
  5. Step 5: Solve for x
    x = 18,667,970,811.81/157,502.12
  6. Step 6: Final answer
    x = 118,525.21

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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.