Home / 150,509.56-207,686.28-86,868.40

Finding the Fourth Proportional to 150,509.56, 207,686.28 and 86,868.40

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Solution

The fourth proportional to 150,509.56, 207,686.28 and 86,868.40 is: 119,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,509.56 : 207,686.28 = 86,868.40 : x
  2. Step 2: Convert to fraction form
    150,509.56/207,686.28 = 86,868.40/x
  3. Step 3: Cross multiply
    150,509.56x = 207,686.28 × 86,868.40
  4. Step 4: Simplify right side
    150,509.56x = 18,041,374,845.55
  5. Step 5: Solve for x
    x = 18,041,374,845.55/150,509.56
  6. Step 6: Final answer
    x = 119,868.63

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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.