Home / 122,386.80-183,580.20-69,801.60

Finding the Fourth Proportional to 122,386.80, 183,580.20 and 69,801.60

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Solution

The fourth proportional to 122,386.80, 183,580.20 and 69,801.60 is: 104,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,386.80 : 183,580.20 = 69,801.60 : x
  2. Step 2: Convert to fraction form
    122,386.80/183,580.20 = 69,801.60/x
  3. Step 3: Cross multiply
    122,386.80x = 183,580.20 × 69,801.60
  4. Step 4: Simplify right side
    122,386.80x = 12,814,191,688.32
  5. Step 5: Solve for x
    x = 12,814,191,688.32/122,386.80
  6. Step 6: Final answer
    x = 104,702.40

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1.5x scale

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.