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Finding the Fourth Proportional to 162,645.57, 224,430.75 and 91,007.55

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Solution

The fourth proportional to 162,645.57, 224,430.75 and 91,007.55 is: 125,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,645.57 : 224,430.75 = 91,007.55 : x
  2. Step 2: Convert to fraction form
    162,645.57/224,430.75 = 91,007.55/x
  3. Step 3: Cross multiply
    162,645.57x = 224,430.75 × 91,007.55
  4. Step 4: Simplify right side
    162,645.57x = 20,424,892,702.16
  5. Step 5: Solve for x
    x = 20,424,892,702.16/162,645.57
  6. Step 6: Final answer
    x = 125,579.15

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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.