Home / 130,257.42-179,751.37-72,116.74

Finding the Fourth Proportional to 130,257.42, 179,751.37 and 72,116.74

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Solution

The fourth proportional to 130,257.42, 179,751.37 and 72,116.74 is: 99,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,257.42 : 179,751.37 = 72,116.74 : x
  2. Step 2: Convert to fraction form
    130,257.42/179,751.37 = 72,116.74/x
  3. Step 3: Cross multiply
    130,257.42x = 179,751.37 × 72,116.74
  4. Step 4: Simplify right side
    130,257.42x = 12,963,083,264.99
  5. Step 5: Solve for x
    x = 12,963,083,264.99/130,257.42
  6. Step 6: Final answer
    x = 99,518.97

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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.