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Finding the Fourth Proportional to 105,461.92, 145,579.44 and 69,177.16

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Solution

The fourth proportional to 105,461.92, 145,579.44 and 69,177.16 is: 95,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.92 : 145,579.44 = 69,177.16 : x
  2. Step 2: Convert to fraction form
    105,461.92/145,579.44 = 69,177.16/x
  3. Step 3: Cross multiply
    105,461.92x = 145,579.44 × 69,177.16
  4. Step 4: Simplify right side
    105,461.92x = 10,070,772,213.59
  5. Step 5: Solve for x
    x = 10,070,772,213.59/105,461.92
  6. Step 6: Final answer
    x = 95,492.02

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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.