Home / 120,458.40-180,798.60-61,336.50

Finding the Fourth Proportional to 120,458.40, 180,798.60 and 61,336.50

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Solution

The fourth proportional to 120,458.40, 180,798.60 and 61,336.50 is: 92,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,458.40 : 180,798.60 = 61,336.50 : x
  2. Step 2: Convert to fraction form
    120,458.40/180,798.60 = 61,336.50/x
  3. Step 3: Cross multiply
    120,458.40x = 180,798.60 × 61,336.50
  4. Step 4: Simplify right side
    120,458.40x = 11,089,553,328.90
  5. Step 5: Solve for x
    x = 11,089,553,328.90/120,458.40
  6. Step 6: Final answer
    x = 92,061.27

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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.