Home / 158,970.10-219,382.80-87,351.94

Finding the Fourth Proportional to 158,970.10, 219,382.80 and 87,351.94

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Solution

The fourth proportional to 158,970.10, 219,382.80 and 87,351.94 is: 120,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,970.10 : 219,382.80 = 87,351.94 : x
  2. Step 2: Convert to fraction form
    158,970.10/219,382.80 = 87,351.94/x
  3. Step 3: Cross multiply
    158,970.10x = 219,382.80 × 87,351.94
  4. Step 4: Simplify right side
    158,970.10x = 19,163,513,182.63
  5. Step 5: Solve for x
    x = 19,163,513,182.63/158,970.10
  6. Step 6: Final answer
    x = 120,547.91

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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.