Home / 130,424.07-179,976.58-72,276.91

Finding the Fourth Proportional to 130,424.07, 179,976.58 and 72,276.91

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Solution

The fourth proportional to 130,424.07, 179,976.58 and 72,276.91 is: 99,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,424.07 : 179,976.58 = 72,276.91 : x
  2. Step 2: Convert to fraction form
    130,424.07/179,976.58 = 72,276.91/x
  3. Step 3: Cross multiply
    130,424.07x = 179,976.58 × 72,276.91
  4. Step 4: Simplify right side
    130,424.07x = 13,008,150,850.69
  5. Step 5: Solve for x
    x = 13,008,150,850.69/130,424.07
  6. Step 6: Final answer
    x = 99,737.35

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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.