Home / 122,214.65-168,340.73-86,342.37

Finding the Fourth Proportional to 122,214.65, 168,340.73 and 86,342.37

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Solution

The fourth proportional to 122,214.65, 168,340.73 and 86,342.37 is: 118,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,214.65 : 168,340.73 = 86,342.37 : x
  2. Step 2: Convert to fraction form
    122,214.65/168,340.73 = 86,342.37/x
  3. Step 3: Cross multiply
    122,214.65x = 168,340.73 × 86,342.37
  4. Step 4: Simplify right side
    122,214.65x = 14,534,937,164.02
  5. Step 5: Solve for x
    x = 14,534,937,164.02/122,214.65
  6. Step 6: Final answer
    x = 118,929.59

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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.