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Finding the Fourth Proportional to 162,396.32, 224,143.08 and 98,720.64

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Solution

The fourth proportional to 162,396.32, 224,143.08 and 98,720.64 is: 136,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,396.32 : 224,143.08 = 98,720.64 : x
  2. Step 2: Convert to fraction form
    162,396.32/224,143.08 = 98,720.64/x
  3. Step 3: Cross multiply
    162,396.32x = 224,143.08 × 98,720.64
  4. Step 4: Simplify right side
    162,396.32x = 22,127,548,309.17
  5. Step 5: Solve for x
    x = 22,127,548,309.17/162,396.32
  6. Step 6: Final answer
    x = 136,256.46

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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.