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Finding the Fourth Proportional to 162,328.80, 224,009.52 and 90,709.20

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Solution

The fourth proportional to 162,328.80, 224,009.52 and 90,709.20 is: 125,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,328.80 : 224,009.52 = 90,709.20 : x
  2. Step 2: Convert to fraction form
    162,328.80/224,009.52 = 90,709.20/x
  3. Step 3: Cross multiply
    162,328.80x = 224,009.52 × 90,709.20
  4. Step 4: Simplify right side
    162,328.80x = 20,319,724,351.58
  5. Step 5: Solve for x
    x = 20,319,724,351.58/162,328.80
  6. Step 6: Final answer
    x = 125,176.34

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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.