Home / 124,655.61-172,038.29-76,907.73

Finding the Fourth Proportional to 124,655.61, 172,038.29 and 76,907.73

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Solution

The fourth proportional to 124,655.61, 172,038.29 and 76,907.73 is: 106,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,655.61 : 172,038.29 = 76,907.73 : x
  2. Step 2: Convert to fraction form
    124,655.61/172,038.29 = 76,907.73/x
  3. Step 3: Cross multiply
    124,655.61x = 172,038.29 × 76,907.73
  4. Step 4: Simplify right side
    124,655.61x = 13,231,074,356.98
  5. Step 5: Solve for x
    x = 13,231,074,356.98/124,655.61
  6. Step 6: Final answer
    x = 106,141.03

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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.