Home / 130,437.15-179,919.63-89,581.56

Finding the Fourth Proportional to 130,437.15, 179,919.63 and 89,581.56

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Solution

The fourth proportional to 130,437.15, 179,919.63 and 89,581.56 is: 123,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,437.15 : 179,919.63 = 89,581.56 : x
  2. Step 2: Convert to fraction form
    130,437.15/179,919.63 = 89,581.56/x
  3. Step 3: Cross multiply
    130,437.15x = 179,919.63 × 89,581.56
  4. Step 4: Simplify right side
    130,437.15x = 16,117,481,130.02
  5. Step 5: Solve for x
    x = 16,117,481,130.02/130,437.15
  6. Step 6: Final answer
    x = 123,565.11

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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.