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Finding the Fourth Proportional to 162,070.68, 243,130.32 and 56,871.12

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Solution

The fourth proportional to 162,070.68, 243,130.32 and 56,871.12 is: 85,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,070.68 : 243,130.32 = 56,871.12 : x
  2. Step 2: Convert to fraction form
    162,070.68/243,130.32 = 56,871.12/x
  3. Step 3: Cross multiply
    162,070.68x = 243,130.32 × 56,871.12
  4. Step 4: Simplify right side
    162,070.68x = 13,827,093,604.36
  5. Step 5: Solve for x
    x = 13,827,093,604.36/162,070.68
  6. Step 6: Final answer
    x = 85,315.21

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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.