Home / 156,981.02-216,629.07-89,004.20

Finding the Fourth Proportional to 156,981.02, 216,629.07 and 89,004.20

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Solution

The fourth proportional to 156,981.02, 216,629.07 and 89,004.20 is: 122,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.02 : 216,629.07 = 89,004.20 : x
  2. Step 2: Convert to fraction form
    156,981.02/216,629.07 = 89,004.20/x
  3. Step 3: Cross multiply
    156,981.02x = 216,629.07 × 89,004.20
  4. Step 4: Simplify right side
    156,981.02x = 19,280,897,072.09
  5. Step 5: Solve for x
    x = 19,280,897,072.09/156,981.02
  6. Step 6: Final answer
    x = 122,823.11

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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.