Home / 158,726.69-219,045.47-87,113.37

Finding the Fourth Proportional to 158,726.69, 219,045.47 and 87,113.37

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Solution

The fourth proportional to 158,726.69, 219,045.47 and 87,113.37 is: 120,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,726.69 : 219,045.47 = 87,113.37 : x
  2. Step 2: Convert to fraction form
    158,726.69/219,045.47 = 87,113.37/x
  3. Step 3: Cross multiply
    158,726.69x = 219,045.47 × 87,113.37
  4. Step 4: Simplify right side
    158,726.69x = 19,081,789,460.79
  5. Step 5: Solve for x
    x = 19,081,789,460.79/158,726.69
  6. Step 6: Final answer
    x = 120,217.90

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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.