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Finding the Fourth Proportional to 108,509.01, 163,502.84 and 89,219.67

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Solution

The fourth proportional to 108,509.01, 163,502.84 and 89,219.67 is: 134,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,509.01 : 163,502.84 = 89,219.67 : x
  2. Step 2: Convert to fraction form
    108,509.01/163,502.84 = 89,219.67/x
  3. Step 3: Cross multiply
    108,509.01x = 163,502.84 × 89,219.67
  4. Step 4: Simplify right side
    108,509.01x = 14,587,669,428.86
  5. Step 5: Solve for x
    x = 14,587,669,428.86/108,509.01
  6. Step 6: Final answer
    x = 134,437.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.