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Finding the Fourth Proportional to 150,030.95, 207,062.30 and 86,371.43

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Solution

The fourth proportional to 150,030.95, 207,062.30 and 86,371.43 is: 119,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,030.95 : 207,062.30 = 86,371.43 : x
  2. Step 2: Convert to fraction form
    150,030.95/207,062.30 = 86,371.43/x
  3. Step 3: Cross multiply
    150,030.95x = 207,062.30 × 86,371.43
  4. Step 4: Simplify right side
    150,030.95x = 17,884,266,518.23
  5. Step 5: Solve for x
    x = 17,884,266,518.23/150,030.95
  6. Step 6: Final answer
    x = 119,203.85

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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.