Home / 161,915.34-223,416.68-90,293.52

Finding the Fourth Proportional to 161,915.34, 223,416.68 and 90,293.52

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Solution

The fourth proportional to 161,915.34, 223,416.68 and 90,293.52 is: 124,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,915.34 : 223,416.68 = 90,293.52 : x
  2. Step 2: Convert to fraction form
    161,915.34/223,416.68 = 90,293.52/x
  3. Step 3: Cross multiply
    161,915.34x = 223,416.68 × 90,293.52
  4. Step 4: Simplify right side
    161,915.34x = 20,173,078,463.91
  5. Step 5: Solve for x
    x = 20,173,078,463.91/161,915.34
  6. Step 6: Final answer
    x = 124,590.29

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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.