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Finding the Fourth Proportional to 152,606.71, 210,585.85 and 85,525.75

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Solution

The fourth proportional to 152,606.71, 210,585.85 and 85,525.75 is: 118,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,606.71 : 210,585.85 = 85,525.75 : x
  2. Step 2: Convert to fraction form
    152,606.71/210,585.85 = 85,525.75/x
  3. Step 3: Cross multiply
    152,606.71x = 210,585.85 × 85,525.75
  4. Step 4: Simplify right side
    152,606.71x = 18,010,512,760.64
  5. Step 5: Solve for x
    x = 18,010,512,760.64/152,606.71
  6. Step 6: Final answer
    x = 118,019.14

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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.