Home / 124,776.72-172,211.36-79,474.24

Finding the Fourth Proportional to 124,776.72, 172,211.36 and 79,474.24

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Solution

The fourth proportional to 124,776.72, 172,211.36 and 79,474.24 is: 109,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,776.72 : 172,211.36 = 79,474.24 : x
  2. Step 2: Convert to fraction form
    124,776.72/172,211.36 = 79,474.24/x
  3. Step 3: Cross multiply
    124,776.72x = 172,211.36 × 79,474.24
  4. Step 4: Simplify right side
    124,776.72x = 13,686,366,955.37
  5. Step 5: Solve for x
    x = 13,686,366,955.37/124,776.72
  6. Step 6: Final answer
    x = 109,686.86

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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.