Home / 150,504.78-207,700.56-85,088.40

Finding the Fourth Proportional to 150,504.78, 207,700.56 and 85,088.40

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Solution

The fourth proportional to 150,504.78, 207,700.56 and 85,088.40 is: 117,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,504.78 : 207,700.56 = 85,088.40 : x
  2. Step 2: Convert to fraction form
    150,504.78/207,700.56 = 85,088.40/x
  3. Step 3: Cross multiply
    150,504.78x = 207,700.56 × 85,088.40
  4. Step 4: Simplify right side
    150,504.78x = 17,672,908,329.50
  5. Step 5: Solve for x
    x = 17,672,908,329.50/150,504.78
  6. Step 6: Final answer
    x = 117,424.23

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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.