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Finding the Fourth Proportional to 168,402.84, 232,390.12 and 100,384.74

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Solution

The fourth proportional to 168,402.84, 232,390.12 and 100,384.74 is: 138,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,402.84 : 232,390.12 = 100,384.74 : x
  2. Step 2: Convert to fraction form
    168,402.84/232,390.12 = 100,384.74/x
  3. Step 3: Cross multiply
    168,402.84x = 232,390.12 × 100,384.74
  4. Step 4: Simplify right side
    168,402.84x = 23,328,421,774.77
  5. Step 5: Solve for x
    x = 23,328,421,774.77/168,402.84
  6. Step 6: Final answer
    x = 138,527.48

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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.