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Finding the Fourth Proportional to 153,187.96, 211,392.57 and 88,646.86

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Solution

The fourth proportional to 153,187.96, 211,392.57 and 88,646.86 is: 122,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,187.96 : 211,392.57 = 88,646.86 : x
  2. Step 2: Convert to fraction form
    153,187.96/211,392.57 = 88,646.86/x
  3. Step 3: Cross multiply
    153,187.96x = 211,392.57 × 88,646.86
  4. Step 4: Simplify right side
    153,187.96x = 18,739,288,105.48
  5. Step 5: Solve for x
    x = 18,739,288,105.48/153,187.96
  6. Step 6: Final answer
    x = 122,328.72

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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.