Home / 130,083.21-179,543.81-79,085.16

Finding the Fourth Proportional to 130,083.21, 179,543.81 and 79,085.16

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Solution

The fourth proportional to 130,083.21, 179,543.81 and 79,085.16 is: 109,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,083.21 : 179,543.81 = 79,085.16 : x
  2. Step 2: Convert to fraction form
    130,083.21/179,543.81 = 79,085.16/x
  3. Step 3: Cross multiply
    130,083.21x = 179,543.81 × 79,085.16
  4. Step 4: Simplify right side
    130,083.21x = 14,199,251,138.57
  5. Step 5: Solve for x
    x = 14,199,251,138.57/130,083.21
  6. Step 6: Final answer
    x = 109,155.14

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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.