Home / 130,613.29-180,079.47-84,591.62

Finding the Fourth Proportional to 130,613.29, 180,079.47 and 84,591.62

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Solution

The fourth proportional to 130,613.29, 180,079.47 and 84,591.62 is: 116,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,613.29 : 180,079.47 = 84,591.62 : x
  2. Step 2: Convert to fraction form
    130,613.29/180,079.47 = 84,591.62/x
  3. Step 3: Cross multiply
    130,613.29x = 180,079.47 × 84,591.62
  4. Step 4: Simplify right side
    130,613.29x = 15,233,213,870.94
  5. Step 5: Solve for x
    x = 15,233,213,870.94/130,613.29
  6. Step 6: Final answer
    x = 116,628.36

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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.