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Finding the Fourth Proportional to 152,636.16, 210,636.54 and 85,568.16

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Solution

The fourth proportional to 152,636.16, 210,636.54 and 85,568.16 is: 118,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,636.16 : 210,636.54 = 85,568.16 : x
  2. Step 2: Convert to fraction form
    152,636.16/210,636.54 = 85,568.16/x
  3. Step 3: Cross multiply
    152,636.16x = 210,636.54 × 85,568.16
  4. Step 4: Simplify right side
    152,636.16x = 18,023,781,156.57
  5. Step 5: Solve for x
    x = 18,023,781,156.57/152,636.16
  6. Step 6: Final answer
    x = 118,083.30

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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.