Home / 158,940.68-219,337.22-87,319.16

Finding the Fourth Proportional to 158,940.68, 219,337.22 and 87,319.16

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Solution

The fourth proportional to 158,940.68, 219,337.22 and 87,319.16 is: 120,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,940.68 : 219,337.22 = 87,319.16 : x
  2. Step 2: Convert to fraction form
    158,940.68/219,337.22 = 87,319.16/x
  3. Step 3: Cross multiply
    158,940.68x = 219,337.22 × 87,319.16
  4. Step 4: Simplify right side
    158,940.68x = 19,152,341,807.14
  5. Step 5: Solve for x
    x = 19,152,341,807.14/158,940.68
  6. Step 6: Final answer
    x = 120,499.94

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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.