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Finding the Fourth Proportional to 136,210.76, 187,864.34 and 88,479.48

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Solution

The fourth proportional to 136,210.76, 187,864.34 and 88,479.48 is: 122,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,210.76 : 187,864.34 = 88,479.48 : x
  2. Step 2: Convert to fraction form
    136,210.76/187,864.34 = 88,479.48/x
  3. Step 3: Cross multiply
    136,210.76x = 187,864.34 × 88,479.48
  4. Step 4: Simplify right side
    136,210.76x = 16,622,138,671.35
  5. Step 5: Solve for x
    x = 16,622,138,671.35/136,210.76
  6. Step 6: Final answer
    x = 122,032.50

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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.