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Finding the Fourth Proportional to 152,168.31, 228,065.51 and 85,468.23

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Solution

The fourth proportional to 152,168.31, 228,065.51 and 85,468.23 is: 128,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,168.31 : 228,065.51 = 85,468.23 : x
  2. Step 2: Convert to fraction form
    152,168.31/228,065.51 = 85,468.23/x
  3. Step 3: Cross multiply
    152,168.31x = 228,065.51 × 85,468.23
  4. Step 4: Simplify right side
    152,168.31x = 19,492,355,677.42
  5. Step 5: Solve for x
    x = 19,492,355,677.42/152,168.31
  6. Step 6: Final answer
    x = 128,097.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.