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Finding the Fourth Proportional to 158,671.84, 218,967.04 and 87,052.32

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Solution

The fourth proportional to 158,671.84, 218,967.04 and 87,052.32 is: 120,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,671.84 : 218,967.04 = 87,052.32 : x
  2. Step 2: Convert to fraction form
    158,671.84/218,967.04 = 87,052.32/x
  3. Step 3: Cross multiply
    158,671.84x = 218,967.04 × 87,052.32
  4. Step 4: Simplify right side
    158,671.84x = 19,061,588,835.53
  5. Step 5: Solve for x
    x = 19,061,588,835.53/158,671.84
  6. Step 6: Final answer
    x = 120,132.15

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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.