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Finding the Fourth Proportional to 135,479.61, 186,959.41 and 75,050.07

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Solution

The fourth proportional to 135,479.61, 186,959.41 and 75,050.07 is: 103,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,479.61 : 186,959.41 = 75,050.07 : x
  2. Step 2: Convert to fraction form
    135,479.61/186,959.41 = 75,050.07/x
  3. Step 3: Cross multiply
    135,479.61x = 186,959.41 × 75,050.07
  4. Step 4: Simplify right side
    135,479.61x = 14,031,316,807.66
  5. Step 5: Solve for x
    x = 14,031,316,807.66/135,479.61
  6. Step 6: Final answer
    x = 103,567.74

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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.