Home / 122,521.60-183,685.20-67,117.60

Finding the Fourth Proportional to 122,521.60, 183,685.20 and 67,117.60

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Solution

The fourth proportional to 122,521.60, 183,685.20 and 67,117.60 is: 100,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,521.60 : 183,685.20 = 67,117.60 : x
  2. Step 2: Convert to fraction form
    122,521.60/183,685.20 = 67,117.60/x
  3. Step 3: Cross multiply
    122,521.60x = 183,685.20 × 67,117.60
  4. Step 4: Simplify right side
    122,521.60x = 12,328,509,779.52
  5. Step 5: Solve for x
    x = 12,328,509,779.52/122,521.60
  6. Step 6: Final answer
    x = 100,623.15

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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.