Home / 124,920.32-172,341.60-79,590.20

Finding the Fourth Proportional to 124,920.32, 172,341.60 and 79,590.20

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Solution

The fourth proportional to 124,920.32, 172,341.60 and 79,590.20 is: 109,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,920.32 : 172,341.60 = 79,590.20 : x
  2. Step 2: Convert to fraction form
    124,920.32/172,341.60 = 79,590.20/x
  3. Step 3: Cross multiply
    124,920.32x = 172,341.60 × 79,590.20
  4. Step 4: Simplify right side
    124,920.32x = 13,716,702,412.32
  5. Step 5: Solve for x
    x = 13,716,702,412.32/124,920.32
  6. Step 6: Final answer
    x = 109,803.61

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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.