Home / 122,319.60-183,587.40-72,337.20

Finding the Fourth Proportional to 122,319.60, 183,587.40 and 72,337.20

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Solution

The fourth proportional to 122,319.60, 183,587.40 and 72,337.20 is: 108,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,319.60 : 183,587.40 = 72,337.20 : x
  2. Step 2: Convert to fraction form
    122,319.60/183,587.40 = 72,337.20/x
  3. Step 3: Cross multiply
    122,319.60x = 183,587.40 × 72,337.20
  4. Step 4: Simplify right side
    122,319.60x = 13,280,198,471.28
  5. Step 5: Solve for x
    x = 13,280,198,471.28/122,319.60
  6. Step 6: Final answer
    x = 108,569.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.