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Finding the Fourth Proportional to 162,130.68, 243,220.32 and 56,931.12

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Solution

The fourth proportional to 162,130.68, 243,220.32 and 56,931.12 is: 85,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,130.68 : 243,220.32 = 56,931.12 : x
  2. Step 2: Convert to fraction form
    162,130.68/243,220.32 = 56,931.12/x
  3. Step 3: Cross multiply
    162,130.68x = 243,220.32 × 56,931.12
  4. Step 4: Simplify right side
    162,130.68x = 13,846,805,224.36
  5. Step 5: Solve for x
    x = 13,846,805,224.36/162,130.68
  6. Step 6: Final answer
    x = 85,405.21

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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.