Home / 122,345.60-183,518.40-103,683.20

Finding the Fourth Proportional to 122,345.60, 183,518.40 and 103,683.20

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Solution

The fourth proportional to 122,345.60, 183,518.40 and 103,683.20 is: 155,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,345.60 : 183,518.40 = 103,683.20 : x
  2. Step 2: Convert to fraction form
    122,345.60/183,518.40 = 103,683.20/x
  3. Step 3: Cross multiply
    122,345.60x = 183,518.40 × 103,683.20
  4. Step 4: Simplify right side
    122,345.60x = 19,027,774,970.88
  5. Step 5: Solve for x
    x = 19,027,774,970.88/122,345.60
  6. Step 6: Final answer
    x = 155,524.80

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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.