Home / 158,730.64-219,048.10-87,111.25

Finding the Fourth Proportional to 158,730.64, 219,048.10 and 87,111.25

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Solution

The fourth proportional to 158,730.64, 219,048.10 and 87,111.25 is: 120,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,730.64 : 219,048.10 = 87,111.25 : x
  2. Step 2: Convert to fraction form
    158,730.64/219,048.10 = 87,111.25/x
  3. Step 3: Cross multiply
    158,730.64x = 219,048.10 × 87,111.25
  4. Step 4: Simplify right side
    158,730.64x = 19,081,553,035.73
  5. Step 5: Solve for x
    x = 19,081,553,035.73/158,730.64
  6. Step 6: Final answer
    x = 120,213.42

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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.