Home / 138,043.40-207,069.70-38,195.24

Finding the Fourth Proportional to 138,043.40, 207,069.70 and 38,195.24

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Solution

The fourth proportional to 138,043.40, 207,069.70 and 38,195.24 is: 57,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,043.40 : 207,069.70 = 38,195.24 : x
  2. Step 2: Convert to fraction form
    138,043.40/207,069.70 = 38,195.24/x
  3. Step 3: Cross multiply
    138,043.40x = 207,069.70 × 38,195.24
  4. Step 4: Simplify right side
    138,043.40x = 7,909,076,888.23
  5. Step 5: Solve for x
    x = 7,909,076,888.23/138,043.40
  6. Step 6: Final answer
    x = 57,294.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.