Home / 147,579.12-203,658.22-83,916.91

Finding the Fourth Proportional to 147,579.12, 203,658.22 and 83,916.91

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Solution

The fourth proportional to 147,579.12, 203,658.22 and 83,916.91 is: 115,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,579.12 : 203,658.22 = 83,916.91 : x
  2. Step 2: Convert to fraction form
    147,579.12/203,658.22 = 83,916.91/x
  3. Step 3: Cross multiply
    147,579.12x = 203,658.22 × 83,916.91
  4. Step 4: Simplify right side
    147,579.12x = 17,090,368,518.50
  5. Step 5: Solve for x
    x = 17,090,368,518.50/147,579.12
  6. Step 6: Final answer
    x = 115,804.79

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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.