Home / 158,784.08-219,124.51-87,170.63

Finding the Fourth Proportional to 158,784.08, 219,124.51 and 87,170.63

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Solution

The fourth proportional to 158,784.08, 219,124.51 and 87,170.63 is: 120,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,784.08 : 219,124.51 = 87,170.63 : x
  2. Step 2: Convert to fraction form
    158,784.08/219,124.51 = 87,170.63/x
  3. Step 3: Cross multiply
    158,784.08x = 219,124.51 × 87,170.63
  4. Step 4: Simplify right side
    158,784.08x = 19,101,220,271.59
  5. Step 5: Solve for x
    x = 19,101,220,271.59/158,784.08
  6. Step 6: Final answer
    x = 120,296.83

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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.