Home / 122,215.02-168,341.24-86,342.75

Finding the Fourth Proportional to 122,215.02, 168,341.24 and 86,342.75

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Solution

The fourth proportional to 122,215.02, 168,341.24 and 86,342.75 is: 118,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,215.02 : 168,341.24 = 86,342.75 : x
  2. Step 2: Convert to fraction form
    122,215.02/168,341.24 = 86,342.75/x
  3. Step 3: Cross multiply
    122,215.02x = 168,341.24 × 86,342.75
  4. Step 4: Simplify right side
    122,215.02x = 14,535,044,974.16
  5. Step 5: Solve for x
    x = 14,535,044,974.16/122,215.02
  6. Step 6: Final answer
    x = 118,930.10

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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.