Home / 124,655.11-172,037.60-76,907.23

Finding the Fourth Proportional to 124,655.11, 172,037.60 and 76,907.23

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Solution

The fourth proportional to 124,655.11, 172,037.60 and 76,907.23 is: 106,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,655.11 : 172,037.60 = 76,907.23 : x
  2. Step 2: Convert to fraction form
    124,655.11/172,037.60 = 76,907.23/x
  3. Step 3: Cross multiply
    124,655.11x = 172,037.60 × 76,907.23
  4. Step 4: Simplify right side
    124,655.11x = 13,230,935,271.85
  5. Step 5: Solve for x
    x = 13,230,935,271.85/124,655.11
  6. Step 6: Final answer
    x = 106,140.34

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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.