Home / 122,400.46-168,915.98-68,688.77

Finding the Fourth Proportional to 122,400.46, 168,915.98 and 68,688.77

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Solution

The fourth proportional to 122,400.46, 168,915.98 and 68,688.77 is: 94,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,400.46 : 168,915.98 = 68,688.77 : x
  2. Step 2: Convert to fraction form
    122,400.46/168,915.98 = 68,688.77/x
  3. Step 3: Cross multiply
    122,400.46x = 168,915.98 × 68,688.77
  4. Step 4: Simplify right side
    122,400.46x = 11,602,630,701.76
  5. Step 5: Solve for x
    x = 11,602,630,701.76/122,400.46
  6. Step 6: Final answer
    x = 94,792.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.