Home / 122,111.56-168,528.90-74,371.84

Finding the Fourth Proportional to 122,111.56, 168,528.90 and 74,371.84

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Solution

The fourth proportional to 122,111.56, 168,528.90 and 74,371.84 is: 102,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,111.56 : 168,528.90 = 74,371.84 : x
  2. Step 2: Convert to fraction form
    122,111.56/168,528.90 = 74,371.84/x
  3. Step 3: Cross multiply
    122,111.56x = 168,528.90 × 74,371.84
  4. Step 4: Simplify right side
    122,111.56x = 12,533,804,386.18
  5. Step 5: Solve for x
    x = 12,533,804,386.18/122,111.56
  6. Step 6: Final answer
    x = 102,642.24

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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.