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Finding the Fourth Proportional to 158,937.68, 219,333.08 and 87,316.16

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Solution

The fourth proportional to 158,937.68, 219,333.08 and 87,316.16 is: 120,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,937.68 : 219,333.08 = 87,316.16 : x
  2. Step 2: Convert to fraction form
    158,937.68/219,333.08 = 87,316.16/x
  3. Step 3: Cross multiply
    158,937.68x = 219,333.08 × 87,316.16
  4. Step 4: Simplify right side
    158,937.68x = 19,151,322,306.57
  5. Step 5: Solve for x
    x = 19,151,322,306.57/158,937.68
  6. Step 6: Final answer
    x = 120,495.80

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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.