Home / 124,916.01-172,379.73-71,218.32

Finding the Fourth Proportional to 124,916.01, 172,379.73 and 71,218.32

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Solution

The fourth proportional to 124,916.01, 172,379.73 and 71,218.32 is: 98,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,916.01 : 172,379.73 = 71,218.32 : x
  2. Step 2: Convert to fraction form
    124,916.01/172,379.73 = 71,218.32/x
  3. Step 3: Cross multiply
    124,916.01x = 172,379.73 × 71,218.32
  4. Step 4: Simplify right side
    124,916.01x = 12,276,594,772.65
  5. Step 5: Solve for x
    x = 12,276,594,772.65/124,916.01
  6. Step 6: Final answer
    x = 98,278.79

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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.