Home / 130,088.23-179,530.83-72,738.71

Finding the Fourth Proportional to 130,088.23, 179,530.83 and 72,738.71

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Solution

The fourth proportional to 130,088.23, 179,530.83 and 72,738.71 is: 100,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,088.23 : 179,530.83 = 72,738.71 : x
  2. Step 2: Convert to fraction form
    130,088.23/179,530.83 = 72,738.71/x
  3. Step 3: Cross multiply
    130,088.23x = 179,530.83 × 72,738.71
  4. Step 4: Simplify right side
    130,088.23x = 13,058,840,755.02
  5. Step 5: Solve for x
    x = 13,058,840,755.02/130,088.23
  6. Step 6: Final answer
    x = 100,384.49

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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.