Home / 109,431.29-151,027.20-63,501.05

Finding the Fourth Proportional to 109,431.29, 151,027.20 and 63,501.05

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Solution

The fourth proportional to 109,431.29, 151,027.20 and 63,501.05 is: 87,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,431.29 : 151,027.20 = 63,501.05 : x
  2. Step 2: Convert to fraction form
    109,431.29/151,027.20 = 63,501.05/x
  3. Step 3: Cross multiply
    109,431.29x = 151,027.20 × 63,501.05
  4. Step 4: Simplify right side
    109,431.29x = 9,590,386,156.13
  5. Step 5: Solve for x
    x = 9,590,386,156.13/109,431.29
  6. Step 6: Final answer
    x = 87,638.43

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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.