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Finding the Fourth Proportional to 187,479.58, 258,681.80 and 111,022.70

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Solution

The fourth proportional to 187,479.58, 258,681.80 and 111,022.70 is: 153,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,479.58 : 258,681.80 = 111,022.70 : x
  2. Step 2: Convert to fraction form
    187,479.58/258,681.80 = 111,022.70/x
  3. Step 3: Cross multiply
    187,479.58x = 258,681.80 × 111,022.70
  4. Step 4: Simplify right side
    187,479.58x = 28,719,551,876.86
  5. Step 5: Solve for x
    x = 28,719,551,876.86/187,479.58
  6. Step 6: Final answer
    x = 153,187.63

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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.