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Finding the Fourth Proportional to 103,666.51, 155,492.47 and 40,474.76

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Solution

The fourth proportional to 103,666.51, 155,492.47 and 40,474.76 is: 60,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.51 : 155,492.47 = 40,474.76 : x
  2. Step 2: Convert to fraction form
    103,666.51/155,492.47 = 40,474.76/x
  3. Step 3: Cross multiply
    103,666.51x = 155,492.47 × 40,474.76
  4. Step 4: Simplify right side
    103,666.51x = 6,293,520,405.06
  5. Step 5: Solve for x
    x = 6,293,520,405.06/103,666.51
  6. Step 6: Final answer
    x = 60,709.29

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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.