Home / 158,842.32-219,210.36-87,221.52

Finding the Fourth Proportional to 158,842.32, 219,210.36 and 87,221.52

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Solution

The fourth proportional to 158,842.32, 219,210.36 and 87,221.52 is: 120,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,842.32 : 219,210.36 = 87,221.52 : x
  2. Step 2: Convert to fraction form
    158,842.32/219,210.36 = 87,221.52/x
  3. Step 3: Cross multiply
    158,842.32x = 219,210.36 × 87,221.52
  4. Step 4: Simplify right side
    158,842.32x = 19,119,860,798.95
  5. Step 5: Solve for x
    x = 19,119,860,798.95/158,842.32
  6. Step 6: Final answer
    x = 120,370.07

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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.