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Finding the Fourth Proportional to 129,295.83, 178,476.47 and 75,598.10

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Solution

The fourth proportional to 129,295.83, 178,476.47 and 75,598.10 is: 104,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,295.83 : 178,476.47 = 75,598.10 : x
  2. Step 2: Convert to fraction form
    129,295.83/178,476.47 = 75,598.10/x
  3. Step 3: Cross multiply
    129,295.83x = 178,476.47 × 75,598.10
  4. Step 4: Simplify right side
    129,295.83x = 13,492,480,756.33
  5. Step 5: Solve for x
    x = 13,492,480,756.33/129,295.83
  6. Step 6: Final answer
    x = 104,353.56

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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.