Home / 150,307.73-207,428.02-85,775.68

Finding the Fourth Proportional to 150,307.73, 207,428.02 and 85,775.68

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Solution

The fourth proportional to 150,307.73, 207,428.02 and 85,775.68 is: 118,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,307.73 : 207,428.02 = 85,775.68 : x
  2. Step 2: Convert to fraction form
    150,307.73/207,428.02 = 85,775.68/x
  3. Step 3: Cross multiply
    150,307.73x = 207,428.02 × 85,775.68
  4. Step 4: Simplify right side
    150,307.73x = 17,792,279,466.55
  5. Step 5: Solve for x
    x = 17,792,279,466.55/150,307.73
  6. Step 6: Final answer
    x = 118,372.35

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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.