Home / 172,416.18-237,898.68-100,782.35

Finding the Fourth Proportional to 172,416.18, 237,898.68 and 100,782.35

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Solution

The fourth proportional to 172,416.18, 237,898.68 and 100,782.35 is: 139,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,416.18 : 237,898.68 = 100,782.35 : x
  2. Step 2: Convert to fraction form
    172,416.18/237,898.68 = 100,782.35/x
  3. Step 3: Cross multiply
    172,416.18x = 237,898.68 × 100,782.35
  4. Step 4: Simplify right side
    172,416.18x = 23,975,988,032.30
  5. Step 5: Solve for x
    x = 23,975,988,032.30/172,416.18
  6. Step 6: Final answer
    x = 139,058.81

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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.