Home / 130,018.08-179,328.96-89,744.16

Finding the Fourth Proportional to 130,018.08, 179,328.96 and 89,744.16

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Solution

The fourth proportional to 130,018.08, 179,328.96 and 89,744.16 is: 123,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.08 : 179,328.96 = 89,744.16 : x
  2. Step 2: Convert to fraction form
    130,018.08/179,328.96 = 89,744.16/x
  3. Step 3: Cross multiply
    130,018.08x = 179,328.96 × 89,744.16
  4. Step 4: Simplify right side
    130,018.08x = 16,093,726,878.87
  5. Step 5: Solve for x
    x = 16,093,726,878.87/130,018.08
  6. Step 6: Final answer
    x = 123,780.68

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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.