Home / 130,122.24-179,549.70-76,424.58

Finding the Fourth Proportional to 130,122.24, 179,549.70 and 76,424.58

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Solution

The fourth proportional to 130,122.24, 179,549.70 and 76,424.58 is: 105,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,122.24 : 179,549.70 = 76,424.58 : x
  2. Step 2: Convert to fraction form
    130,122.24/179,549.70 = 76,424.58/x
  3. Step 3: Cross multiply
    130,122.24x = 179,549.70 × 76,424.58
  4. Step 4: Simplify right side
    130,122.24x = 13,722,010,411.63
  5. Step 5: Solve for x
    x = 13,722,010,411.63/130,122.24
  6. Step 6: Final answer
    x = 105,454.77

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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.