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Finding the Fourth Proportional to 108,411.48, 162,616.29 and 84,738.93

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Solution

The fourth proportional to 108,411.48, 162,616.29 and 84,738.93 is: 127,107.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,411.48 : 162,616.29 = 84,738.93 : x
  2. Step 2: Convert to fraction form
    108,411.48/162,616.29 = 84,738.93/x
  3. Step 3: Cross multiply
    108,411.48x = 162,616.29 × 84,738.93
  4. Step 4: Simplify right side
    108,411.48x = 13,779,930,415.17
  5. Step 5: Solve for x
    x = 13,779,930,415.17/108,411.48
  6. Step 6: Final answer
    x = 127,107.67

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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.