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Finding the Fourth Proportional to 169,671.60, 254,580.30 and 86,565.60

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Solution

The fourth proportional to 169,671.60, 254,580.30 and 86,565.60 is: 129,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,671.60 : 254,580.30 = 86,565.60 : x
  2. Step 2: Convert to fraction form
    169,671.60/254,580.30 = 86,565.60/x
  3. Step 3: Cross multiply
    169,671.60x = 254,580.30 × 86,565.60
  4. Step 4: Simplify right side
    169,671.60x = 22,037,896,417.68
  5. Step 5: Solve for x
    x = 22,037,896,417.68/169,671.60
  6. Step 6: Final answer
    x = 129,885.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.